Home / 3,511.27-5,267.65-1,431.29

Finding the Fourth Proportional to 3,511.27, 5,267.65 and 1,431.29

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Solution

The fourth proportional to 3,511.27, 5,267.65 and 1,431.29 is: 2,147.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.27 : 5,267.65 = 1,431.29 : x
  2. Step 2: Convert to fraction form
    3,511.27/5,267.65 = 1,431.29/x
  3. Step 3: Cross multiply
    3,511.27x = 5,267.65 × 1,431.29
  4. Step 4: Simplify right side
    3,511.27x = 7,539,534.77
  5. Step 5: Solve for x
    x = 7,539,534.77/3,511.27
  6. Step 6: Final answer
    x = 2,147.24

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1.5x scale

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.