Home / 3,220.31-4,443.71-1,894.34

Finding the Fourth Proportional to 3,220.31, 4,443.71 and 1,894.34

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Solution

The fourth proportional to 3,220.31, 4,443.71 and 1,894.34 is: 2,614.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.31 : 4,443.71 = 1,894.34 : x
  2. Step 2: Convert to fraction form
    3,220.31/4,443.71 = 1,894.34/x
  3. Step 3: Cross multiply
    3,220.31x = 4,443.71 × 1,894.34
  4. Step 4: Simplify right side
    3,220.31x = 8,417,865.91
  5. Step 5: Solve for x
    x = 8,417,865.91/3,220.31
  6. Step 6: Final answer
    x = 2,614.00

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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.