Home / 1,454.18-2,007.16-865.12

Finding the Fourth Proportional to 1,454.18, 2,007.16 and 865.12

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Solution

The fourth proportional to 1,454.18, 2,007.16 and 865.12 is: 1,194.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,454.18 : 2,007.16 = 865.12 : x
  2. Step 2: Convert to fraction form
    1,454.18/2,007.16 = 865.12/x
  3. Step 3: Cross multiply
    1,454.18x = 2,007.16 × 865.12
  4. Step 4: Simplify right side
    1,454.18x = 1,736,434.26
  5. Step 5: Solve for x
    x = 1,736,434.26/1,454.18
  6. Step 6: Final answer
    x = 1,194.10

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1.5x scale

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.