Home / 2,281.10-3,147.26-1,563.57

Finding the Fourth Proportional to 2,281.10, 3,147.26 and 1,563.57

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Solution

The fourth proportional to 2,281.10, 3,147.26 and 1,563.57 is: 2,157.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,281.10 : 3,147.26 = 1,563.57 : x
  2. Step 2: Convert to fraction form
    2,281.10/3,147.26 = 1,563.57/x
  3. Step 3: Cross multiply
    2,281.10x = 3,147.26 × 1,563.57
  4. Step 4: Simplify right side
    2,281.10x = 4,920,953.50
  5. Step 5: Solve for x
    x = 4,920,953.50/2,281.10
  6. Step 6: Final answer
    x = 2,157.28

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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.