Home / 5,581.96-8,374.28-1,686.12

Finding the Fourth Proportional to 5,581.96, 8,374.28 and 1,686.12

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Solution

The fourth proportional to 5,581.96, 8,374.28 and 1,686.12 is: 2,529.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,581.96 : 8,374.28 = 1,686.12 : x
  2. Step 2: Convert to fraction form
    5,581.96/8,374.28 = 1,686.12/x
  3. Step 3: Cross multiply
    5,581.96x = 8,374.28 × 1,686.12
  4. Step 4: Simplify right side
    5,581.96x = 14,120,040.99
  5. Step 5: Solve for x
    x = 14,120,040.99/5,581.96
  6. Step 6: Final answer
    x = 2,529.58

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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.