Home / 1,455.04-2,007.66-865.18

Finding the Fourth Proportional to 1,455.04, 2,007.66 and 865.18

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Solution

The fourth proportional to 1,455.04, 2,007.66 and 865.18 is: 1,193.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455.04 : 2,007.66 = 865.18 : x
  2. Step 2: Convert to fraction form
    1,455.04/2,007.66 = 865.18/x
  3. Step 3: Cross multiply
    1,455.04x = 2,007.66 × 865.18
  4. Step 4: Simplify right side
    1,455.04x = 1,736,987.28
  5. Step 5: Solve for x
    x = 1,736,987.28/1,455.04
  6. Step 6: Final answer
    x = 1,193.77

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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.