Home / 1,265.28-1,746.09-1,164.75

Finding the Fourth Proportional to 1,265.28, 1,746.09 and 1,164.75

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Solution

The fourth proportional to 1,265.28, 1,746.09 and 1,164.75 is: 1,607.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265.28 : 1,746.09 = 1,164.75 : x
  2. Step 2: Convert to fraction form
    1,265.28/1,746.09 = 1,164.75/x
  3. Step 3: Cross multiply
    1,265.28x = 1,746.09 × 1,164.75
  4. Step 4: Simplify right side
    1,265.28x = 2,033,758.33
  5. Step 5: Solve for x
    x = 2,033,758.33/1,265.28
  6. Step 6: Final answer
    x = 1,607.36

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Half scale
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Double scale
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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.