Home / 5,747.75-8,621.63-1,587.80

Finding the Fourth Proportional to 5,747.75, 8,621.63 and 1,587.80

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Solution

The fourth proportional to 5,747.75, 8,621.63 and 1,587.80 is: 2,381.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,747.75 : 8,621.63 = 1,587.80 : x
  2. Step 2: Convert to fraction form
    5,747.75/8,621.63 = 1,587.80/x
  3. Step 3: Cross multiply
    5,747.75x = 8,621.63 × 1,587.80
  4. Step 4: Simplify right side
    5,747.75x = 13,689,424.11
  5. Step 5: Solve for x
    x = 13,689,424.11/5,747.75
  6. Step 6: Final answer
    x = 2,381.70

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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.