Home / 5,460.42-8,189.10-1,563.78

Finding the Fourth Proportional to 5,460.42, 8,189.10 and 1,563.78

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Solution

The fourth proportional to 5,460.42, 8,189.10 and 1,563.78 is: 2,345.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,460.42 : 8,189.10 = 1,563.78 : x
  2. Step 2: Convert to fraction form
    5,460.42/8,189.10 = 1,563.78/x
  3. Step 3: Cross multiply
    5,460.42x = 8,189.10 × 1,563.78
  4. Step 4: Simplify right side
    5,460.42x = 12,805,950.80
  5. Step 5: Solve for x
    x = 12,805,950.80/5,460.42
  6. Step 6: Final answer
    x = 2,345.23

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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.