Home / 5,079.43-7,009.28-2,840.92

Finding the Fourth Proportional to 5,079.43, 7,009.28 and 2,840.92

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Solution

The fourth proportional to 5,079.43, 7,009.28 and 2,840.92 is: 3,920.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,079.43 : 7,009.28 = 2,840.92 : x
  2. Step 2: Convert to fraction form
    5,079.43/7,009.28 = 2,840.92/x
  3. Step 3: Cross multiply
    5,079.43x = 7,009.28 × 2,840.92
  4. Step 4: Simplify right side
    5,079.43x = 19,912,805.63
  5. Step 5: Solve for x
    x = 19,912,805.63/5,079.43
  6. Step 6: Final answer
    x = 3,920.28

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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.