Home / 1,563.20-2,342.10-1,015.10

Finding the Fourth Proportional to 1,563.20, 2,342.10 and 1,015.10

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Solution

The fourth proportional to 1,563.20, 2,342.10 and 1,015.10 is: 1,520.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,563.20 : 2,342.10 = 1,015.10 : x
  2. Step 2: Convert to fraction form
    1,563.20/2,342.10 = 1,015.10/x
  3. Step 3: Cross multiply
    1,563.20x = 2,342.10 × 1,015.10
  4. Step 4: Simplify right side
    1,563.20x = 2,377,465.71
  5. Step 5: Solve for x
    x = 2,377,465.71/1,563.20
  6. Step 6: Final answer
    x = 1,520.90

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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.