Home / 5,074.50-7,003.08-2,979.30

Finding the Fourth Proportional to 5,074.50, 7,003.08 and 2,979.30

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Solution

The fourth proportional to 5,074.50, 7,003.08 and 2,979.30 is: 4,111.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,074.50 : 7,003.08 = 2,979.30 : x
  2. Step 2: Convert to fraction form
    5,074.50/7,003.08 = 2,979.30/x
  3. Step 3: Cross multiply
    5,074.50x = 7,003.08 × 2,979.30
  4. Step 4: Simplify right side
    5,074.50x = 20,864,276.24
  5. Step 5: Solve for x
    x = 20,864,276.24/5,074.50
  6. Step 6: Final answer
    x = 4,111.59

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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.