Home / 2,915.20-4,369.96-1,065.16

Finding the Fourth Proportional to 2,915.20, 4,369.96 and 1,065.16

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Solution

The fourth proportional to 2,915.20, 4,369.96 and 1,065.16 is: 1,596.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.20 : 4,369.96 = 1,065.16 : x
  2. Step 2: Convert to fraction form
    2,915.20/4,369.96 = 1,065.16/x
  3. Step 3: Cross multiply
    2,915.20x = 4,369.96 × 1,065.16
  4. Step 4: Simplify right side
    2,915.20x = 4,654,706.59
  5. Step 5: Solve for x
    x = 4,654,706.59/2,915.20
  6. Step 6: Final answer
    x = 1,596.70

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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.