Home / 5,005.80-6,908.08-2,909.92

Finding the Fourth Proportional to 5,005.80, 6,908.08 and 2,909.92

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Solution

The fourth proportional to 5,005.80, 6,908.08 and 2,909.92 is: 4,015.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,005.80 : 6,908.08 = 2,909.92 : x
  2. Step 2: Convert to fraction form
    5,005.80/6,908.08 = 2,909.92/x
  3. Step 3: Cross multiply
    5,005.80x = 6,908.08 × 2,909.92
  4. Step 4: Simplify right side
    5,005.80x = 20,101,967.43
  5. Step 5: Solve for x
    x = 20,101,967.43/5,005.80
  6. Step 6: Final answer
    x = 4,015.74

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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.