Home / 5,430.66-8,130.49-3,576.12

Finding the Fourth Proportional to 5,430.66, 8,130.49 and 3,576.12

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Solution

The fourth proportional to 5,430.66, 8,130.49 and 3,576.12 is: 5,353.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430.66 : 8,130.49 = 3,576.12 : x
  2. Step 2: Convert to fraction form
    5,430.66/8,130.49 = 3,576.12/x
  3. Step 3: Cross multiply
    5,430.66x = 8,130.49 × 3,576.12
  4. Step 4: Simplify right side
    5,430.66x = 29,075,568.47
  5. Step 5: Solve for x
    x = 29,075,568.47/5,430.66
  6. Step 6: Final answer
    x = 5,353.97

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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.