Home / 2,915.79-4,374.97-1,528.79

Finding the Fourth Proportional to 2,915.79, 4,374.97 and 1,528.79

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Solution

The fourth proportional to 2,915.79, 4,374.97 and 1,528.79 is: 2,293.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.79 : 4,374.97 = 1,528.79 : x
  2. Step 2: Convert to fraction form
    2,915.79/4,374.97 = 1,528.79/x
  3. Step 3: Cross multiply
    2,915.79x = 4,374.97 × 1,528.79
  4. Step 4: Simplify right side
    2,915.79x = 6,688,410.39
  5. Step 5: Solve for x
    x = 6,688,410.39/2,915.79
  6. Step 6: Final answer
    x = 2,293.86

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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.