Home / 2,909.18-4,017.09-2,698.13

Finding the Fourth Proportional to 2,909.18, 4,017.09 and 2,698.13

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Solution

The fourth proportional to 2,909.18, 4,017.09 and 2,698.13 is: 3,725.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909.18 : 4,017.09 = 2,698.13 : x
  2. Step 2: Convert to fraction form
    2,909.18/4,017.09 = 2,698.13/x
  3. Step 3: Cross multiply
    2,909.18x = 4,017.09 × 2,698.13
  4. Step 4: Simplify right side
    2,909.18x = 10,838,600.84
  5. Step 5: Solve for x
    x = 10,838,600.84/2,909.18
  6. Step 6: Final answer
    x = 3,725.66

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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.