Home / 3,702.61-5,110.07-2,130.70

Finding the Fourth Proportional to 3,702.61, 5,110.07 and 2,130.70

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Solution

The fourth proportional to 3,702.61, 5,110.07 and 2,130.70 is: 2,940.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,702.61 : 5,110.07 = 2,130.70 : x
  2. Step 2: Convert to fraction form
    3,702.61/5,110.07 = 2,130.70/x
  3. Step 3: Cross multiply
    3,702.61x = 5,110.07 × 2,130.70
  4. Step 4: Simplify right side
    3,702.61x = 10,888,026.15
  5. Step 5: Solve for x
    x = 10,888,026.15/3,702.61
  6. Step 6: Final answer
    x = 2,940.64

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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.