Home / 1,885.13-2,829.45-961.35

Finding the Fourth Proportional to 1,885.13, 2,829.45 and 961.35

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Solution

The fourth proportional to 1,885.13, 2,829.45 and 961.35 is: 1,442.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,885.13 : 2,829.45 = 961.35 : x
  2. Step 2: Convert to fraction form
    1,885.13/2,829.45 = 961.35/x
  3. Step 3: Cross multiply
    1,885.13x = 2,829.45 × 961.35
  4. Step 4: Simplify right side
    1,885.13x = 2,720,091.76
  5. Step 5: Solve for x
    x = 2,720,091.76/1,885.13
  6. Step 6: Final answer
    x = 1,442.92

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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.