Home / 5,411.90-8,117.85-4,310.30

Finding the Fourth Proportional to 5,411.90, 8,117.85 and 4,310.30

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Solution

The fourth proportional to 5,411.90, 8,117.85 and 4,310.30 is: 6,465.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,411.90 : 8,117.85 = 4,310.30 : x
  2. Step 2: Convert to fraction form
    5,411.90/8,117.85 = 4,310.30/x
  3. Step 3: Cross multiply
    5,411.90x = 8,117.85 × 4,310.30
  4. Step 4: Simplify right side
    5,411.90x = 34,990,368.86
  5. Step 5: Solve for x
    x = 34,990,368.86/5,411.90
  6. Step 6: Final answer
    x = 6,465.45

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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.