Home / 5,707.92-8,560.68-1,811.40

Finding the Fourth Proportional to 5,707.92, 8,560.68 and 1,811.40

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Solution

The fourth proportional to 5,707.92, 8,560.68 and 1,811.40 is: 2,716.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,707.92 : 8,560.68 = 1,811.40 : x
  2. Step 2: Convert to fraction form
    5,707.92/8,560.68 = 1,811.40/x
  3. Step 3: Cross multiply
    5,707.92x = 8,560.68 × 1,811.40
  4. Step 4: Simplify right side
    5,707.92x = 15,506,815.75
  5. Step 5: Solve for x
    x = 15,506,815.75/5,707.92
  6. Step 6: Final answer
    x = 2,716.72

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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.