Home / 1,140.46-1,712.31-1,088.26

Finding the Fourth Proportional to 1,140.46, 1,712.31 and 1,088.26

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Solution

The fourth proportional to 1,140.46, 1,712.31 and 1,088.26 is: 1,633.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140.46 : 1,712.31 = 1,088.26 : x
  2. Step 2: Convert to fraction form
    1,140.46/1,712.31 = 1,088.26/x
  3. Step 3: Cross multiply
    1,140.46x = 1,712.31 × 1,088.26
  4. Step 4: Simplify right side
    1,140.46x = 1,863,438.48
  5. Step 5: Solve for x
    x = 1,863,438.48/1,140.46
  6. Step 6: Final answer
    x = 1,633.94

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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.