Home / 5,119.58-7,064.98-2,881.55

Finding the Fourth Proportional to 5,119.58, 7,064.98 and 2,881.55

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Solution

The fourth proportional to 5,119.58, 7,064.98 and 2,881.55 is: 3,976.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,119.58 : 7,064.98 = 2,881.55 : x
  2. Step 2: Convert to fraction form
    5,119.58/7,064.98 = 2,881.55/x
  3. Step 3: Cross multiply
    5,119.58x = 7,064.98 × 2,881.55
  4. Step 4: Simplify right side
    5,119.58x = 20,358,103.58
  5. Step 5: Solve for x
    x = 20,358,103.58/5,119.58
  6. Step 6: Final answer
    x = 3,976.52

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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.