Home / 2,389.76-3,298.02-1,341.90

Finding the Fourth Proportional to 2,389.76, 3,298.02 and 1,341.90

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Solution

The fourth proportional to 2,389.76, 3,298.02 and 1,341.90 is: 1,851.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,389.76 : 3,298.02 = 1,341.90 : x
  2. Step 2: Convert to fraction form
    2,389.76/3,298.02 = 1,341.90/x
  3. Step 3: Cross multiply
    2,389.76x = 3,298.02 × 1,341.90
  4. Step 4: Simplify right side
    2,389.76x = 4,425,613.04
  5. Step 5: Solve for x
    x = 4,425,613.04/2,389.76
  6. Step 6: Final answer
    x = 1,851.91

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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.