Home / 5,228.64-7,213.75-2,988.93

Finding the Fourth Proportional to 5,228.64, 7,213.75 and 2,988.93

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Solution

The fourth proportional to 5,228.64, 7,213.75 and 2,988.93 is: 4,123.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,228.64 : 7,213.75 = 2,988.93 : x
  2. Step 2: Convert to fraction form
    5,228.64/7,213.75 = 2,988.93/x
  3. Step 3: Cross multiply
    5,228.64x = 7,213.75 × 2,988.93
  4. Step 4: Simplify right side
    5,228.64x = 21,561,397.52
  5. Step 5: Solve for x
    x = 21,561,397.52/5,228.64
  6. Step 6: Final answer
    x = 4,123.71

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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.