Home / 2,909.08-4,014.12-1,729.92

Finding the Fourth Proportional to 2,909.08, 4,014.12 and 1,729.92

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Solution

The fourth proportional to 2,909.08, 4,014.12 and 1,729.92 is: 2,387.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909.08 : 4,014.12 = 1,729.92 : x
  2. Step 2: Convert to fraction form
    2,909.08/4,014.12 = 1,729.92/x
  3. Step 3: Cross multiply
    2,909.08x = 4,014.12 × 1,729.92
  4. Step 4: Simplify right side
    2,909.08x = 6,944,106.47
  5. Step 5: Solve for x
    x = 6,944,106.47/2,909.08
  6. Step 6: Final answer
    x = 2,387.05

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1.5x scale

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.