Home / 3,031.78-4,548.10-1,470.50

Finding the Fourth Proportional to 3,031.78, 4,548.10 and 1,470.50

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Solution

The fourth proportional to 3,031.78, 4,548.10 and 1,470.50 is: 2,205.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,031.78 : 4,548.10 = 1,470.50 : x
  2. Step 2: Convert to fraction form
    3,031.78/4,548.10 = 1,470.50/x
  3. Step 3: Cross multiply
    3,031.78x = 4,548.10 × 1,470.50
  4. Step 4: Simplify right side
    3,031.78x = 6,687,981.05
  5. Step 5: Solve for x
    x = 6,687,981.05/3,031.78
  6. Step 6: Final answer
    x = 2,205.96

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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.