Home / 2,318.56-3,476.93-931.53

Finding the Fourth Proportional to 2,318.56, 3,476.93 and 931.53

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Solution

The fourth proportional to 2,318.56, 3,476.93 and 931.53 is: 1,396.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,318.56 : 3,476.93 = 931.53 : x
  2. Step 2: Convert to fraction form
    2,318.56/3,476.93 = 931.53/x
  3. Step 3: Cross multiply
    2,318.56x = 3,476.93 × 931.53
  4. Step 4: Simplify right side
    2,318.56x = 3,238,872.98
  5. Step 5: Solve for x
    x = 3,238,872.98/2,318.56
  6. Step 6: Final answer
    x = 1,396.93

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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.