Home / 3,751.90-5,627.31-1,561.12

Finding the Fourth Proportional to 3,751.90, 5,627.31 and 1,561.12

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Solution

The fourth proportional to 3,751.90, 5,627.31 and 1,561.12 is: 2,341.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,751.90 : 5,627.31 = 1,561.12 : x
  2. Step 2: Convert to fraction form
    3,751.90/5,627.31 = 1,561.12/x
  3. Step 3: Cross multiply
    3,751.90x = 5,627.31 × 1,561.12
  4. Step 4: Simplify right side
    3,751.90x = 8,784,906.19
  5. Step 5: Solve for x
    x = 8,784,906.19/3,751.90
  6. Step 6: Final answer
    x = 2,341.46

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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.