Home / 5,311.60-7,967.81-1,614.13

Finding the Fourth Proportional to 5,311.60, 7,967.81 and 1,614.13

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Solution

The fourth proportional to 5,311.60, 7,967.81 and 1,614.13 is: 2,421.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311.60 : 7,967.81 = 1,614.13 : x
  2. Step 2: Convert to fraction form
    5,311.60/7,967.81 = 1,614.13/x
  3. Step 3: Cross multiply
    5,311.60x = 7,967.81 × 1,614.13
  4. Step 4: Simplify right side
    5,311.60x = 12,861,081.16
  5. Step 5: Solve for x
    x = 12,861,081.16/5,311.60
  6. Step 6: Final answer
    x = 2,421.32

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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.