Home / 5,785.12-7,983.47-3,132.53

Finding the Fourth Proportional to 5,785.12, 7,983.47 and 3,132.53

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Solution

The fourth proportional to 5,785.12, 7,983.47 and 3,132.53 is: 4,322.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,785.12 : 7,983.47 = 3,132.53 : x
  2. Step 2: Convert to fraction form
    5,785.12/7,983.47 = 3,132.53/x
  3. Step 3: Cross multiply
    5,785.12x = 7,983.47 × 3,132.53
  4. Step 4: Simplify right side
    5,785.12x = 25,008,459.28
  5. Step 5: Solve for x
    x = 25,008,459.28/5,785.12
  6. Step 6: Final answer
    x = 4,322.89

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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.