Home / 2,689.38-4,034.66-1,457.90

Finding the Fourth Proportional to 2,689.38, 4,034.66 and 1,457.90

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Solution

The fourth proportional to 2,689.38, 4,034.66 and 1,457.90 is: 2,187.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689.38 : 4,034.66 = 1,457.90 : x
  2. Step 2: Convert to fraction form
    2,689.38/4,034.66 = 1,457.90/x
  3. Step 3: Cross multiply
    2,689.38x = 4,034.66 × 1,457.90
  4. Step 4: Simplify right side
    2,689.38x = 5,882,130.81
  5. Step 5: Solve for x
    x = 5,882,130.81/2,689.38
  6. Step 6: Final answer
    x = 2,187.17

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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.