Home / 3,725.10-5,139.54-2,152.92

Finding the Fourth Proportional to 3,725.10, 5,139.54 and 2,152.92

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Solution

The fourth proportional to 3,725.10, 5,139.54 and 2,152.92 is: 2,970.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,725.10 : 5,139.54 = 2,152.92 : x
  2. Step 2: Convert to fraction form
    3,725.10/5,139.54 = 2,152.92/x
  3. Step 3: Cross multiply
    3,725.10x = 5,139.54 × 2,152.92
  4. Step 4: Simplify right side
    3,725.10x = 11,065,018.46
  5. Step 5: Solve for x
    x = 11,065,018.46/3,725.10
  6. Step 6: Final answer
    x = 2,970.40

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Half scale
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Double scale
Find fourth proportional to 3,726.10, 5,140.92 and 2,153.92
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.