Home / 5,638.16-8,419.78-5,577.14

Finding the Fourth Proportional to 5,638.16, 8,419.78 and 5,577.14

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Solution

The fourth proportional to 5,638.16, 8,419.78 and 5,577.14 is: 8,328.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,638.16 : 8,419.78 = 5,577.14 : x
  2. Step 2: Convert to fraction form
    5,638.16/8,419.78 = 5,577.14/x
  3. Step 3: Cross multiply
    5,638.16x = 8,419.78 × 5,577.14
  4. Step 4: Simplify right side
    5,638.16x = 46,958,291.83
  5. Step 5: Solve for x
    x = 46,958,291.83/5,638.16
  6. Step 6: Final answer
    x = 8,328.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.