Home / 3,411.52-5,117.34-1,220.80

Finding the Fourth Proportional to 3,411.52, 5,117.34 and 1,220.80

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Solution

The fourth proportional to 3,411.52, 5,117.34 and 1,220.80 is: 1,831.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,411.52 : 5,117.34 = 1,220.80 : x
  2. Step 2: Convert to fraction form
    3,411.52/5,117.34 = 1,220.80/x
  3. Step 3: Cross multiply
    3,411.52x = 5,117.34 × 1,220.80
  4. Step 4: Simplify right side
    3,411.52x = 6,247,248.67
  5. Step 5: Solve for x
    x = 6,247,248.67/3,411.52
  6. Step 6: Final answer
    x = 1,831.22

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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.