Home / 7,345.57-10,131.88-4,691.79

Finding the Fourth Proportional to 7,345.57, 10,131.88 and 4,691.79

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Solution

The fourth proportional to 7,345.57, 10,131.88 and 4,691.79 is: 6,471.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,345.57 : 10,131.88 = 4,691.79 : x
  2. Step 2: Convert to fraction form
    7,345.57/10,131.88 = 4,691.79/x
  3. Step 3: Cross multiply
    7,345.57x = 10,131.88 × 4,691.79
  4. Step 4: Simplify right side
    7,345.57x = 47,536,629.81
  5. Step 5: Solve for x
    x = 47,536,629.81/7,345.57
  6. Step 6: Final answer
    x = 6,471.47

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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.