Home / 3,720.68-5,134.95-2,377.53

Finding the Fourth Proportional to 3,720.68, 5,134.95 and 2,377.53

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Solution

The fourth proportional to 3,720.68, 5,134.95 and 2,377.53 is: 3,281.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.68 : 5,134.95 = 2,377.53 : x
  2. Step 2: Convert to fraction form
    3,720.68/5,134.95 = 2,377.53/x
  3. Step 3: Cross multiply
    3,720.68x = 5,134.95 × 2,377.53
  4. Step 4: Simplify right side
    3,720.68x = 12,208,497.67
  5. Step 5: Solve for x
    x = 12,208,497.67/3,720.68
  6. Step 6: Final answer
    x = 3,281.25

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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.