Home / 5,170.25-7,134.95-2,931.41

Finding the Fourth Proportional to 5,170.25, 7,134.95 and 2,931.41

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Solution

The fourth proportional to 5,170.25, 7,134.95 and 2,931.41 is: 4,045.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,170.25 : 7,134.95 = 2,931.41 : x
  2. Step 2: Convert to fraction form
    5,170.25/7,134.95 = 2,931.41/x
  3. Step 3: Cross multiply
    5,170.25x = 7,134.95 × 2,931.41
  4. Step 4: Simplify right side
    5,170.25x = 20,915,463.78
  5. Step 5: Solve for x
    x = 20,915,463.78/5,170.25
  6. Step 6: Final answer
    x = 4,045.35

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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.