Home / 5,333.90-8,001.32-1,385.15

Finding the Fourth Proportional to 5,333.90, 8,001.32 and 1,385.15

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Solution

The fourth proportional to 5,333.90, 8,001.32 and 1,385.15 is: 2,077.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,333.90 : 8,001.32 = 1,385.15 : x
  2. Step 2: Convert to fraction form
    5,333.90/8,001.32 = 1,385.15/x
  3. Step 3: Cross multiply
    5,333.90x = 8,001.32 × 1,385.15
  4. Step 4: Simplify right side
    5,333.90x = 11,082,981.47
  5. Step 5: Solve for x
    x = 11,082,981.47/5,333.90
  6. Step 6: Final answer
    x = 2,077.84

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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.