Home / 5,416.46-8,124.65-1,520.87

Finding the Fourth Proportional to 5,416.46, 8,124.65 and 1,520.87

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Solution

The fourth proportional to 5,416.46, 8,124.65 and 1,520.87 is: 2,281.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,416.46 : 8,124.65 = 1,520.87 : x
  2. Step 2: Convert to fraction form
    5,416.46/8,124.65 = 1,520.87/x
  3. Step 3: Cross multiply
    5,416.46x = 8,124.65 × 1,520.87
  4. Step 4: Simplify right side
    5,416.46x = 12,356,488.22
  5. Step 5: Solve for x
    x = 12,356,488.22/5,416.46
  6. Step 6: Final answer
    x = 2,281.29

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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.