Home / 5,054.40-6,979.38-3,169.15

Finding the Fourth Proportional to 5,054.40, 6,979.38 and 3,169.15

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Solution

The fourth proportional to 5,054.40, 6,979.38 and 3,169.15 is: 4,376.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,054.40 : 6,979.38 = 3,169.15 : x
  2. Step 2: Convert to fraction form
    5,054.40/6,979.38 = 3,169.15/x
  3. Step 3: Cross multiply
    5,054.40x = 6,979.38 × 3,169.15
  4. Step 4: Simplify right side
    5,054.40x = 22,118,702.13
  5. Step 5: Solve for x
    x = 22,118,702.13/5,054.40
  6. Step 6: Final answer
    x = 4,376.13

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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.