Home / 1,440.19-2,160.75-618.04

Finding the Fourth Proportional to 1,440.19, 2,160.75 and 618.04

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Solution

The fourth proportional to 1,440.19, 2,160.75 and 618.04 is: 927.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440.19 : 2,160.75 = 618.04 : x
  2. Step 2: Convert to fraction form
    1,440.19/2,160.75 = 618.04/x
  3. Step 3: Cross multiply
    1,440.19x = 2,160.75 × 618.04
  4. Step 4: Simplify right side
    1,440.19x = 1,335,429.93
  5. Step 5: Solve for x
    x = 1,335,429.93/1,440.19
  6. Step 6: Final answer
    x = 927.26

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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.