Home / 3,220.60-4,411.12-3,031.46

Finding the Fourth Proportional to 3,220.60, 4,411.12 and 3,031.46

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Solution

The fourth proportional to 3,220.60, 4,411.12 and 3,031.46 is: 4,152.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.60 : 4,411.12 = 3,031.46 : x
  2. Step 2: Convert to fraction form
    3,220.60/4,411.12 = 3,031.46/x
  3. Step 3: Cross multiply
    3,220.60x = 4,411.12 × 3,031.46
  4. Step 4: Simplify right side
    3,220.60x = 13,372,141.41
  5. Step 5: Solve for x
    x = 13,372,141.41/3,220.60
  6. Step 6: Final answer
    x = 4,152.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.