Home / 5,785.15-7,983.53-3,132.56

Finding the Fourth Proportional to 5,785.15, 7,983.53 and 3,132.56

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Solution

The fourth proportional to 5,785.15, 7,983.53 and 3,132.56 is: 4,322.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,785.15 : 7,983.53 = 3,132.56 : x
  2. Step 2: Convert to fraction form
    5,785.15/7,983.53 = 3,132.56/x
  3. Step 3: Cross multiply
    5,785.15x = 7,983.53 × 3,132.56
  4. Step 4: Simplify right side
    5,785.15x = 25,008,886.74
  5. Step 5: Solve for x
    x = 25,008,886.74/5,785.15
  6. Step 6: Final answer
    x = 4,322.95

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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.