Home / 3,560.60-5,340.90-928.10

Finding the Fourth Proportional to 3,560.60, 5,340.90 and 928.10

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Solution

The fourth proportional to 3,560.60, 5,340.90 and 928.10 is: 1,392.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,560.60 : 5,340.90 = 928.10 : x
  2. Step 2: Convert to fraction form
    3,560.60/5,340.90 = 928.10/x
  3. Step 3: Cross multiply
    3,560.60x = 5,340.90 × 928.10
  4. Step 4: Simplify right side
    3,560.60x = 4,956,889.29
  5. Step 5: Solve for x
    x = 4,956,889.29/3,560.60
  6. Step 6: Final answer
    x = 1,392.15

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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.