Home / 1,812.78-2,501.49-1,026.90

Finding the Fourth Proportional to 1,812.78, 2,501.49 and 1,026.90

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Solution

The fourth proportional to 1,812.78, 2,501.49 and 1,026.90 is: 1,417.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,812.78 : 2,501.49 = 1,026.90 : x
  2. Step 2: Convert to fraction form
    1,812.78/2,501.49 = 1,026.90/x
  3. Step 3: Cross multiply
    1,812.78x = 2,501.49 × 1,026.90
  4. Step 4: Simplify right side
    1,812.78x = 2,568,780.08
  5. Step 5: Solve for x
    x = 2,568,780.08/1,812.78
  6. Step 6: Final answer
    x = 1,417.04

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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.