Home / 7,613.75-11,417.60-2,931.14

Finding the Fourth Proportional to 7,613.75, 11,417.60 and 2,931.14

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Solution

The fourth proportional to 7,613.75, 11,417.60 and 2,931.14 is: 4,395.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,613.75 : 11,417.60 = 2,931.14 : x
  2. Step 2: Convert to fraction form
    7,613.75/11,417.60 = 2,931.14/x
  3. Step 3: Cross multiply
    7,613.75x = 11,417.60 × 2,931.14
  4. Step 4: Simplify right side
    7,613.75x = 33,466,619.94
  5. Step 5: Solve for x
    x = 33,466,619.94/7,613.75
  6. Step 6: Final answer
    x = 4,395.55

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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.