Home / 3,725.19-5,140.76-2,153.28

Finding the Fourth Proportional to 3,725.19, 5,140.76 and 2,153.28

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Solution

The fourth proportional to 3,725.19, 5,140.76 and 2,153.28 is: 2,971.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,725.19 : 5,140.76 = 2,153.28 : x
  2. Step 2: Convert to fraction form
    3,725.19/5,140.76 = 2,153.28/x
  3. Step 3: Cross multiply
    3,725.19x = 5,140.76 × 2,153.28
  4. Step 4: Simplify right side
    3,725.19x = 11,069,495.69
  5. Step 5: Solve for x
    x = 11,069,495.69/3,725.19
  6. Step 6: Final answer
    x = 2,971.53

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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.