Home / 5,385.20-8,077.44-1,436.16

Finding the Fourth Proportional to 5,385.20, 8,077.44 and 1,436.16

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Solution

The fourth proportional to 5,385.20, 8,077.44 and 1,436.16 is: 2,154.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,385.20 : 8,077.44 = 1,436.16 : x
  2. Step 2: Convert to fraction form
    5,385.20/8,077.44 = 1,436.16/x
  3. Step 3: Cross multiply
    5,385.20x = 8,077.44 × 1,436.16
  4. Step 4: Simplify right side
    5,385.20x = 11,600,496.23
  5. Step 5: Solve for x
    x = 11,600,496.23/5,385.20
  6. Step 6: Final answer
    x = 2,154.14

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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.