Home / 3,220.63-4,443.95-1,876.46

Finding the Fourth Proportional to 3,220.63, 4,443.95 and 1,876.46

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Solution

The fourth proportional to 3,220.63, 4,443.95 and 1,876.46 is: 2,589.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.63 : 4,443.95 = 1,876.46 : x
  2. Step 2: Convert to fraction form
    3,220.63/4,443.95 = 1,876.46/x
  3. Step 3: Cross multiply
    3,220.63x = 4,443.95 × 1,876.46
  4. Step 4: Simplify right side
    3,220.63x = 8,338,876.89
  5. Step 5: Solve for x
    x = 8,338,876.89/3,220.63
  6. Step 6: Final answer
    x = 2,589.21

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1.5x scale

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.