Home / 2,405.28-3,318.10-1,566.48

Finding the Fourth Proportional to 2,405.28, 3,318.10 and 1,566.48

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Solution

The fourth proportional to 2,405.28, 3,318.10 and 1,566.48 is: 2,160.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,405.28 : 3,318.10 = 1,566.48 : x
  2. Step 2: Convert to fraction form
    2,405.28/3,318.10 = 1,566.48/x
  3. Step 3: Cross multiply
    2,405.28x = 3,318.10 × 1,566.48
  4. Step 4: Simplify right side
    2,405.28x = 5,197,737.29
  5. Step 5: Solve for x
    x = 5,197,737.29/2,405.28
  6. Step 6: Final answer
    x = 2,160.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.