Home / 1,165.20-1,610.28-955.04

Finding the Fourth Proportional to 1,165.20, 1,610.28 and 955.04

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Solution

The fourth proportional to 1,165.20, 1,610.28 and 955.04 is: 1,319.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165.20 : 1,610.28 = 955.04 : x
  2. Step 2: Convert to fraction form
    1,165.20/1,610.28 = 955.04/x
  3. Step 3: Cross multiply
    1,165.20x = 1,610.28 × 955.04
  4. Step 4: Simplify right side
    1,165.20x = 1,537,873.76
  5. Step 5: Solve for x
    x = 1,537,873.76/1,165.20
  6. Step 6: Final answer
    x = 1,319.84

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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.