Home / 2,915.76-4,023.61-1,656.65

Finding the Fourth Proportional to 2,915.76, 4,023.61 and 1,656.65

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Solution

The fourth proportional to 2,915.76, 4,023.61 and 1,656.65 is: 2,286.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.76 : 4,023.61 = 1,656.65 : x
  2. Step 2: Convert to fraction form
    2,915.76/4,023.61 = 1,656.65/x
  3. Step 3: Cross multiply
    2,915.76x = 4,023.61 × 1,656.65
  4. Step 4: Simplify right side
    2,915.76x = 6,665,705.22
  5. Step 5: Solve for x
    x = 6,665,705.22/2,915.76
  6. Step 6: Final answer
    x = 2,286.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.