Home / 3,031.86-4,545.90-1,299

Finding the Fourth Proportional to 3,031.86, 4,545.90 and 1,299

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Solution

The fourth proportional to 3,031.86, 4,545.90 and 1,299 is: 1,947.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,031.86 : 4,545.90 = 1,299 : x
  2. Step 2: Convert to fraction form
    3,031.86/4,545.90 = 1,299/x
  3. Step 3: Cross multiply
    3,031.86x = 4,545.90 × 1,299
  4. Step 4: Simplify right side
    3,031.86x = 5,905,124.10
  5. Step 5: Solve for x
    x = 5,905,124.10/3,031.86
  6. Step 6: Final answer
    x = 1,947.69

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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.