Home / 2,290.87-3,159.57-1,591.03

Finding the Fourth Proportional to 2,290.87, 3,159.57 and 1,591.03

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Solution

The fourth proportional to 2,290.87, 3,159.57 and 1,591.03 is: 2,194.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,290.87 : 3,159.57 = 1,591.03 : x
  2. Step 2: Convert to fraction form
    2,290.87/3,159.57 = 1,591.03/x
  3. Step 3: Cross multiply
    2,290.87x = 3,159.57 × 1,591.03
  4. Step 4: Simplify right side
    2,290.87x = 5,026,970.66
  5. Step 5: Solve for x
    x = 5,026,970.66/2,290.87
  6. Step 6: Final answer
    x = 2,194.35

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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.