Home / 1,541.39-2,126.70-1,147.73

Finding the Fourth Proportional to 1,541.39, 2,126.70 and 1,147.73

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Solution

The fourth proportional to 1,541.39, 2,126.70 and 1,147.73 is: 1,583.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,541.39 : 2,126.70 = 1,147.73 : x
  2. Step 2: Convert to fraction form
    1,541.39/2,126.70 = 1,147.73/x
  3. Step 3: Cross multiply
    1,541.39x = 2,126.70 × 1,147.73
  4. Step 4: Simplify right side
    1,541.39x = 2,440,866.76
  5. Step 5: Solve for x
    x = 2,440,866.76/1,541.39
  6. Step 6: Final answer
    x = 1,583.55

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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.