Home / 5,686.20-8,529.40-3,549.72

Finding the Fourth Proportional to 5,686.20, 8,529.40 and 3,549.72

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Solution

The fourth proportional to 5,686.20, 8,529.40 and 3,549.72 is: 5,324.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,686.20 : 8,529.40 = 3,549.72 : x
  2. Step 2: Convert to fraction form
    5,686.20/8,529.40 = 3,549.72/x
  3. Step 3: Cross multiply
    5,686.20x = 8,529.40 × 3,549.72
  4. Step 4: Simplify right side
    5,686.20x = 30,276,981.77
  5. Step 5: Solve for x
    x = 30,276,981.77/5,686.20
  6. Step 6: Final answer
    x = 5,324.64

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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.