Home / 5,117.28-7,678.08-2,523.12

Finding the Fourth Proportional to 5,117.28, 7,678.08 and 2,523.12

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Solution

The fourth proportional to 5,117.28, 7,678.08 and 2,523.12 is: 3,785.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,117.28 : 7,678.08 = 2,523.12 : x
  2. Step 2: Convert to fraction form
    5,117.28/7,678.08 = 2,523.12/x
  3. Step 3: Cross multiply
    5,117.28x = 7,678.08 × 2,523.12
  4. Step 4: Simplify right side
    5,117.28x = 19,372,717.21
  5. Step 5: Solve for x
    x = 19,372,717.21/5,117.28
  6. Step 6: Final answer
    x = 3,785.75

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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.