Home / 5,412.98-7,470.04-3,315.90

Finding the Fourth Proportional to 5,412.98, 7,470.04 and 3,315.90

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Solution

The fourth proportional to 5,412.98, 7,470.04 and 3,315.90 is: 4,576.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,412.98 : 7,470.04 = 3,315.90 : x
  2. Step 2: Convert to fraction form
    5,412.98/7,470.04 = 3,315.90/x
  3. Step 3: Cross multiply
    5,412.98x = 7,470.04 × 3,315.90
  4. Step 4: Simplify right side
    5,412.98x = 24,769,905.64
  5. Step 5: Solve for x
    x = 24,769,905.64/5,412.98
  6. Step 6: Final answer
    x = 4,576.02

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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.