Home / 2,197.30-3,031.45-1,411.81

Finding the Fourth Proportional to 2,197.30, 3,031.45 and 1,411.81

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Solution

The fourth proportional to 2,197.30, 3,031.45 and 1,411.81 is: 1,947.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,197.30 : 3,031.45 = 1,411.81 : x
  2. Step 2: Convert to fraction form
    2,197.30/3,031.45 = 1,411.81/x
  3. Step 3: Cross multiply
    2,197.30x = 3,031.45 × 1,411.81
  4. Step 4: Simplify right side
    2,197.30x = 4,279,831.42
  5. Step 5: Solve for x
    x = 4,279,831.42/2,197.30
  6. Step 6: Final answer
    x = 1,947.77

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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.