Home / 5,686.13-8,529.20-1,987.37

Finding the Fourth Proportional to 5,686.13, 8,529.20 and 1,987.37

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Solution

The fourth proportional to 5,686.13, 8,529.20 and 1,987.37 is: 2,981.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,686.13 : 8,529.20 = 1,987.37 : x
  2. Step 2: Convert to fraction form
    5,686.13/8,529.20 = 1,987.37/x
  3. Step 3: Cross multiply
    5,686.13x = 8,529.20 × 1,987.37
  4. Step 4: Simplify right side
    5,686.13x = 16,950,676.20
  5. Step 5: Solve for x
    x = 16,950,676.20/5,686.13
  6. Step 6: Final answer
    x = 2,981.06

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Double scale
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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.