Home / 2,291.08-3,436.87-829.91

Finding the Fourth Proportional to 2,291.08, 3,436.87 and 829.91

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Solution

The fourth proportional to 2,291.08, 3,436.87 and 829.91 is: 1,244.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,291.08 : 3,436.87 = 829.91 : x
  2. Step 2: Convert to fraction form
    2,291.08/3,436.87 = 829.91/x
  3. Step 3: Cross multiply
    2,291.08x = 3,436.87 × 829.91
  4. Step 4: Simplify right side
    2,291.08x = 2,852,292.78
  5. Step 5: Solve for x
    x = 2,852,292.78/2,291.08
  6. Step 6: Final answer
    x = 1,244.96

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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.