Home / 2,318.18-3,476.16-931.15

Finding the Fourth Proportional to 2,318.18, 3,476.16 and 931.15

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Solution

The fourth proportional to 2,318.18, 3,476.16 and 931.15 is: 1,396.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,318.18 : 3,476.16 = 931.15 : x
  2. Step 2: Convert to fraction form
    2,318.18/3,476.16 = 931.15/x
  3. Step 3: Cross multiply
    2,318.18x = 3,476.16 × 931.15
  4. Step 4: Simplify right side
    2,318.18x = 3,236,817.69
  5. Step 5: Solve for x
    x = 3,236,817.69/2,318.18
  6. Step 6: Final answer
    x = 1,396.27

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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.