Home / 5,557.93-8,331.42-2,638.28

Finding the Fourth Proportional to 5,557.93, 8,331.42 and 2,638.28

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Solution

The fourth proportional to 5,557.93, 8,331.42 and 2,638.28 is: 3,954.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,557.93 : 8,331.42 = 2,638.28 : x
  2. Step 2: Convert to fraction form
    5,557.93/8,331.42 = 2,638.28/x
  3. Step 3: Cross multiply
    5,557.93x = 8,331.42 × 2,638.28
  4. Step 4: Simplify right side
    5,557.93x = 21,980,649.48
  5. Step 5: Solve for x
    x = 21,980,649.48/5,557.93
  6. Step 6: Final answer
    x = 3,954.83

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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.