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Finding the Fourth Proportional to 2,915.46, 4,373.28 and 835.65

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Solution

The fourth proportional to 2,915.46, 4,373.28 and 835.65 is: 1,253.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.46 : 4,373.28 = 835.65 : x
  2. Step 2: Convert to fraction form
    2,915.46/4,373.28 = 835.65/x
  3. Step 3: Cross multiply
    2,915.46x = 4,373.28 × 835.65
  4. Step 4: Simplify right side
    2,915.46x = 3,654,531.43
  5. Step 5: Solve for x
    x = 3,654,531.43/2,915.46
  6. Step 6: Final answer
    x = 1,253.50

Related Problems

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Double scale
Find fourth proportional to 2,916.46, 4,374.78 and 836.65
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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.