Home / 4,191.12-6,287.85-1,269.45

Finding the Fourth Proportional to 4,191.12, 6,287.85 and 1,269.45

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Solution

The fourth proportional to 4,191.12, 6,287.85 and 1,269.45 is: 1,904.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,191.12 : 6,287.85 = 1,269.45 : x
  2. Step 2: Convert to fraction form
    4,191.12/6,287.85 = 1,269.45/x
  3. Step 3: Cross multiply
    4,191.12x = 6,287.85 × 1,269.45
  4. Step 4: Simplify right side
    4,191.12x = 7,982,111.18
  5. Step 5: Solve for x
    x = 7,982,111.18/4,191.12
  6. Step 6: Final answer
    x = 1,904.53

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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.