Home / 5,384.56-8,076.84-1,687.13

Finding the Fourth Proportional to 5,384.56, 8,076.84 and 1,687.13

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Solution

The fourth proportional to 5,384.56, 8,076.84 and 1,687.13 is: 2,530.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,384.56 : 8,076.84 = 1,687.13 : x
  2. Step 2: Convert to fraction form
    5,384.56/8,076.84 = 1,687.13/x
  3. Step 3: Cross multiply
    5,384.56x = 8,076.84 × 1,687.13
  4. Step 4: Simplify right side
    5,384.56x = 13,626,638.69
  5. Step 5: Solve for x
    x = 13,626,638.69/5,384.56
  6. Step 6: Final answer
    x = 2,530.69

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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.