Home / 5,416.72-8,124.90-1,521.04

Finding the Fourth Proportional to 5,416.72, 8,124.90 and 1,521.04

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Solution

The fourth proportional to 5,416.72, 8,124.90 and 1,521.04 is: 2,281.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,416.72 : 8,124.90 = 1,521.04 : x
  2. Step 2: Convert to fraction form
    5,416.72/8,124.90 = 1,521.04/x
  3. Step 3: Cross multiply
    5,416.72x = 8,124.90 × 1,521.04
  4. Step 4: Simplify right side
    5,416.72x = 12,358,297.90
  5. Step 5: Solve for x
    x = 12,358,297.90/5,416.72
  6. Step 6: Final answer
    x = 2,281.51

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Half scale
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Double scale
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Similar ratio
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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.