Home / 6,750.16-10,128.36-2,588.78

Finding the Fourth Proportional to 6,750.16, 10,128.36 and 2,588.78

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Solution

The fourth proportional to 6,750.16, 10,128.36 and 2,588.78 is: 3,884.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,750.16 : 10,128.36 = 2,588.78 : x
  2. Step 2: Convert to fraction form
    6,750.16/10,128.36 = 2,588.78/x
  3. Step 3: Cross multiply
    6,750.16x = 10,128.36 × 2,588.78
  4. Step 4: Simplify right side
    6,750.16x = 26,220,095.80
  5. Step 5: Solve for x
    x = 26,220,095.80/6,750.16
  6. Step 6: Final answer
    x = 3,884.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.