Home / 4,991.40-6,888.92-3,294.90

Finding the Fourth Proportional to 4,991.40, 6,888.92 and 3,294.90

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Solution

The fourth proportional to 4,991.40, 6,888.92 and 3,294.90 is: 4,547.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,991.40 : 6,888.92 = 3,294.90 : x
  2. Step 2: Convert to fraction form
    4,991.40/6,888.92 = 3,294.90/x
  3. Step 3: Cross multiply
    4,991.40x = 6,888.92 × 3,294.90
  4. Step 4: Simplify right side
    4,991.40x = 22,698,286.03
  5. Step 5: Solve for x
    x = 22,698,286.03/4,991.40
  6. Step 6: Final answer
    x = 4,547.48

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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.