Home / 2,290.22-3,159.84-1,345.52

Finding the Fourth Proportional to 2,290.22, 3,159.84 and 1,345.52

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Solution

The fourth proportional to 2,290.22, 3,159.84 and 1,345.52 is: 1,856.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,290.22 : 3,159.84 = 1,345.52 : x
  2. Step 2: Convert to fraction form
    2,290.22/3,159.84 = 1,345.52/x
  3. Step 3: Cross multiply
    2,290.22x = 3,159.84 × 1,345.52
  4. Step 4: Simplify right side
    2,290.22x = 4,251,627.92
  5. Step 5: Solve for x
    x = 4,251,627.92/2,290.22
  6. Step 6: Final answer
    x = 1,856.43

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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.