Home / 5,110.32-7,053.72-2,987.64

Finding the Fourth Proportional to 5,110.32, 7,053.72 and 2,987.64

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Solution

The fourth proportional to 5,110.32, 7,053.72 and 2,987.64 is: 4,123.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,110.32 : 7,053.72 = 2,987.64 : x
  2. Step 2: Convert to fraction form
    5,110.32/7,053.72 = 2,987.64/x
  3. Step 3: Cross multiply
    5,110.32x = 7,053.72 × 2,987.64
  4. Step 4: Simplify right side
    5,110.32x = 21,073,976.02
  5. Step 5: Solve for x
    x = 21,073,976.02/5,110.32
  6. Step 6: Final answer
    x = 4,123.81

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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.