Home / 5,587.38-8,381.88-1,692.12

Finding the Fourth Proportional to 5,587.38, 8,381.88 and 1,692.12

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Solution

The fourth proportional to 5,587.38, 8,381.88 and 1,692.12 is: 2,538.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,587.38 : 8,381.88 = 1,692.12 : x
  2. Step 2: Convert to fraction form
    5,587.38/8,381.88 = 1,692.12/x
  3. Step 3: Cross multiply
    5,587.38x = 8,381.88 × 1,692.12
  4. Step 4: Simplify right side
    5,587.38x = 14,183,146.79
  5. Step 5: Solve for x
    x = 14,183,146.79/5,587.38
  6. Step 6: Final answer
    x = 2,538.43

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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.