Home / 2,042.45-2,815.15-1,563.74

Finding the Fourth Proportional to 2,042.45, 2,815.15 and 1,563.74

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Solution

The fourth proportional to 2,042.45, 2,815.15 and 1,563.74 is: 2,155.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,042.45 : 2,815.15 = 1,563.74 : x
  2. Step 2: Convert to fraction form
    2,042.45/2,815.15 = 1,563.74/x
  3. Step 3: Cross multiply
    2,042.45x = 2,815.15 × 1,563.74
  4. Step 4: Simplify right side
    2,042.45x = 4,402,162.66
  5. Step 5: Solve for x
    x = 4,402,162.66/2,042.45
  6. Step 6: Final answer
    x = 2,155.33

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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.