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Finding the Fourth Proportional to 1,257.71, 1,883.48 and 1,036.99

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Solution

The fourth proportional to 1,257.71, 1,883.48 and 1,036.99 is: 1,552.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257.71 : 1,883.48 = 1,036.99 : x
  2. Step 2: Convert to fraction form
    1,257.71/1,883.48 = 1,036.99/x
  3. Step 3: Cross multiply
    1,257.71x = 1,883.48 × 1,036.99
  4. Step 4: Simplify right side
    1,257.71x = 1,953,140.03
  5. Step 5: Solve for x
    x = 1,953,140.03/1,257.71
  6. Step 6: Final answer
    x = 1,552.93

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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.