Home / 4,390.20-6,058.80-2,622.78

Finding the Fourth Proportional to 4,390.20, 6,058.80 and 2,622.78

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Solution

The fourth proportional to 4,390.20, 6,058.80 and 2,622.78 is: 3,619.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,390.20 : 6,058.80 = 2,622.78 : x
  2. Step 2: Convert to fraction form
    4,390.20/6,058.80 = 2,622.78/x
  3. Step 3: Cross multiply
    4,390.20x = 6,058.80 × 2,622.78
  4. Step 4: Simplify right side
    4,390.20x = 15,890,899.46
  5. Step 5: Solve for x
    x = 15,890,899.46/4,390.20
  6. Step 6: Final answer
    x = 3,619.63

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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.