Home / 2,218.90-3,325.70-1,031.33

Finding the Fourth Proportional to 2,218.90, 3,325.70 and 1,031.33

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Solution

The fourth proportional to 2,218.90, 3,325.70 and 1,031.33 is: 1,545.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218.90 : 3,325.70 = 1,031.33 : x
  2. Step 2: Convert to fraction form
    2,218.90/3,325.70 = 1,031.33/x
  3. Step 3: Cross multiply
    2,218.90x = 3,325.70 × 1,031.33
  4. Step 4: Simplify right side
    2,218.90x = 3,429,897.28
  5. Step 5: Solve for x
    x = 3,429,897.28/2,218.90
  6. Step 6: Final answer
    x = 1,545.77

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1.5x scale

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.