Home / 2,876.85-4,312.91-1,490.58

Finding the Fourth Proportional to 2,876.85, 4,312.91 and 1,490.58

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Solution

The fourth proportional to 2,876.85, 4,312.91 and 1,490.58 is: 2,234.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,876.85 : 4,312.91 = 1,490.58 : x
  2. Step 2: Convert to fraction form
    2,876.85/4,312.91 = 1,490.58/x
  3. Step 3: Cross multiply
    2,876.85x = 4,312.91 × 1,490.58
  4. Step 4: Simplify right side
    2,876.85x = 6,428,729.93
  5. Step 5: Solve for x
    x = 6,428,729.93/2,876.85
  6. Step 6: Final answer
    x = 2,234.64

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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.