Home / 2,881.74-4,320.56-1,125.38

Finding the Fourth Proportional to 2,881.74, 4,320.56 and 1,125.38

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Solution

The fourth proportional to 2,881.74, 4,320.56 and 1,125.38 is: 1,687.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,881.74 : 4,320.56 = 1,125.38 : x
  2. Step 2: Convert to fraction form
    2,881.74/4,320.56 = 1,125.38/x
  3. Step 3: Cross multiply
    2,881.74x = 4,320.56 × 1,125.38
  4. Step 4: Simplify right side
    2,881.74x = 4,862,271.81
  5. Step 5: Solve for x
    x = 4,862,271.81/2,881.74
  6. Step 6: Final answer
    x = 1,687.27

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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.