Home / 5,384.84-8,077.26-1,687.10

Finding the Fourth Proportional to 5,384.84, 8,077.26 and 1,687.10

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Solution

The fourth proportional to 5,384.84, 8,077.26 and 1,687.10 is: 2,530.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,384.84 : 8,077.26 = 1,687.10 : x
  2. Step 2: Convert to fraction form
    5,384.84/8,077.26 = 1,687.10/x
  3. Step 3: Cross multiply
    5,384.84x = 8,077.26 × 1,687.10
  4. Step 4: Simplify right side
    5,384.84x = 13,627,145.35
  5. Step 5: Solve for x
    x = 13,627,145.35/5,384.84
  6. Step 6: Final answer
    x = 2,530.65

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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.