Home / 1,004.27-1,386.11-611.55

Finding the Fourth Proportional to 1,004.27, 1,386.11 and 611.55

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Solution

The fourth proportional to 1,004.27, 1,386.11 and 611.55 is: 844.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,004.27 : 1,386.11 = 611.55 : x
  2. Step 2: Convert to fraction form
    1,004.27/1,386.11 = 611.55/x
  3. Step 3: Cross multiply
    1,004.27x = 1,386.11 × 611.55
  4. Step 4: Simplify right side
    1,004.27x = 847,677.10
  5. Step 5: Solve for x
    x = 847,677.10/1,004.27
  6. Step 6: Final answer
    x = 844.08

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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.