Home / 5,074.90-7,003.65-2,979.34

Finding the Fourth Proportional to 5,074.90, 7,003.65 and 2,979.34

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Solution

The fourth proportional to 5,074.90, 7,003.65 and 2,979.34 is: 4,111.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,074.90 : 7,003.65 = 2,979.34 : x
  2. Step 2: Convert to fraction form
    5,074.90/7,003.65 = 2,979.34/x
  3. Step 3: Cross multiply
    5,074.90x = 7,003.65 × 2,979.34
  4. Step 4: Simplify right side
    5,074.90x = 20,866,254.59
  5. Step 5: Solve for x
    x = 20,866,254.59/5,074.90
  6. Step 6: Final answer
    x = 4,111.66

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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.