Home / 2,318.27-3,477.60-931.55

Finding the Fourth Proportional to 2,318.27, 3,477.60 and 931.55

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Solution

The fourth proportional to 2,318.27, 3,477.60 and 931.55 is: 1,397.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,318.27 : 3,477.60 = 931.55 : x
  2. Step 2: Convert to fraction form
    2,318.27/3,477.60 = 931.55/x
  3. Step 3: Cross multiply
    2,318.27x = 3,477.60 × 931.55
  4. Step 4: Simplify right side
    2,318.27x = 3,239,540.89
  5. Step 5: Solve for x
    x = 3,239,540.89/2,318.27
  6. Step 6: Final answer
    x = 1,397.40

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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.