Home / 5,178.02-7,148.61-3,412.70

Finding the Fourth Proportional to 5,178.02, 7,148.61 and 3,412.70

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Solution

The fourth proportional to 5,178.02, 7,148.61 and 3,412.70 is: 4,711.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178.02 : 7,148.61 = 3,412.70 : x
  2. Step 2: Convert to fraction form
    5,178.02/7,148.61 = 3,412.70/x
  3. Step 3: Cross multiply
    5,178.02x = 7,148.61 × 3,412.70
  4. Step 4: Simplify right side
    5,178.02x = 24,396,061.35
  5. Step 5: Solve for x
    x = 24,396,061.35/5,178.02
  6. Step 6: Final answer
    x = 4,711.47

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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.