Home / 4,785.57-7,178.13-1,275.59

Finding the Fourth Proportional to 4,785.57, 7,178.13 and 1,275.59

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Solution

The fourth proportional to 4,785.57, 7,178.13 and 1,275.59 is: 1,913.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,785.57 : 7,178.13 = 1,275.59 : x
  2. Step 2: Convert to fraction form
    4,785.57/7,178.13 = 1,275.59/x
  3. Step 3: Cross multiply
    4,785.57x = 7,178.13 × 1,275.59
  4. Step 4: Simplify right side
    4,785.57x = 9,156,314.96
  5. Step 5: Solve for x
    x = 9,156,314.96/4,785.57
  6. Step 6: Final answer
    x = 1,913.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.