Home / 7,040.16-10,562.02-2,109.78

Finding the Fourth Proportional to 7,040.16, 10,562.02 and 2,109.78

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Solution

The fourth proportional to 7,040.16, 10,562.02 and 2,109.78 is: 3,165.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,040.16 : 10,562.02 = 2,109.78 : x
  2. Step 2: Convert to fraction form
    7,040.16/10,562.02 = 2,109.78/x
  3. Step 3: Cross multiply
    7,040.16x = 10,562.02 × 2,109.78
  4. Step 4: Simplify right side
    7,040.16x = 22,283,538.56
  5. Step 5: Solve for x
    x = 22,283,538.56/7,040.16
  6. Step 6: Final answer
    x = 3,165.20

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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.