Home / 2,915.68-4,374.81-1,528.69

Finding the Fourth Proportional to 2,915.68, 4,374.81 and 1,528.69

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Solution

The fourth proportional to 2,915.68, 4,374.81 and 1,528.69 is: 2,293.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.68 : 4,374.81 = 1,528.69 : x
  2. Step 2: Convert to fraction form
    2,915.68/4,374.81 = 1,528.69/x
  3. Step 3: Cross multiply
    2,915.68x = 4,374.81 × 1,528.69
  4. Step 4: Simplify right side
    2,915.68x = 6,687,706.42
  5. Step 5: Solve for x
    x = 6,687,706.42/2,915.68
  6. Step 6: Final answer
    x = 2,293.70

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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.