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Finding the Fourth Proportional to 2,915.02, 4,373.19 and 940.65

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Solution

The fourth proportional to 2,915.02, 4,373.19 and 940.65 is: 1,411.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.02 : 4,373.19 = 940.65 : x
  2. Step 2: Convert to fraction form
    2,915.02/4,373.19 = 940.65/x
  3. Step 3: Cross multiply
    2,915.02x = 4,373.19 × 940.65
  4. Step 4: Simplify right side
    2,915.02x = 4,113,624.77
  5. Step 5: Solve for x
    x = 4,113,624.77/2,915.02
  6. Step 6: Final answer
    x = 1,411.18

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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.