Home / 2,931.89-4,044.87-1,810.88

Finding the Fourth Proportional to 2,931.89, 4,044.87 and 1,810.88

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Solution

The fourth proportional to 2,931.89, 4,044.87 and 1,810.88 is: 2,498.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931.89 : 4,044.87 = 1,810.88 : x
  2. Step 2: Convert to fraction form
    2,931.89/4,044.87 = 1,810.88/x
  3. Step 3: Cross multiply
    2,931.89x = 4,044.87 × 1,810.88
  4. Step 4: Simplify right side
    2,931.89x = 7,324,753.96
  5. Step 5: Solve for x
    x = 7,324,753.96/2,931.89
  6. Step 6: Final answer
    x = 2,498.31

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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.