Home / 5,112.70-7,669.04-1,602.72

Finding the Fourth Proportional to 5,112.70, 7,669.04 and 1,602.72

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Solution

The fourth proportional to 5,112.70, 7,669.04 and 1,602.72 is: 2,404.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,112.70 : 7,669.04 = 1,602.72 : x
  2. Step 2: Convert to fraction form
    5,112.70/7,669.04 = 1,602.72/x
  3. Step 3: Cross multiply
    5,112.70x = 7,669.04 × 1,602.72
  4. Step 4: Simplify right side
    5,112.70x = 12,291,315.78
  5. Step 5: Solve for x
    x = 12,291,315.78/5,112.70
  6. Step 6: Final answer
    x = 2,404.08

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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.