Home / 1,729.56-2,388.12-1,140.93

Finding the Fourth Proportional to 1,729.56, 2,388.12 and 1,140.93

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Solution

The fourth proportional to 1,729.56, 2,388.12 and 1,140.93 is: 1,575.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.56 : 2,388.12 = 1,140.93 : x
  2. Step 2: Convert to fraction form
    1,729.56/2,388.12 = 1,140.93/x
  3. Step 3: Cross multiply
    1,729.56x = 2,388.12 × 1,140.93
  4. Step 4: Simplify right side
    1,729.56x = 2,724,677.75
  5. Step 5: Solve for x
    x = 2,724,677.75/1,729.56
  6. Step 6: Final answer
    x = 1,575.36

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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.