Home / 2,289.32-3,159.28-1,241.40

Finding the Fourth Proportional to 2,289.32, 3,159.28 and 1,241.40

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Solution

The fourth proportional to 2,289.32, 3,159.28 and 1,241.40 is: 1,713.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289.32 : 3,159.28 = 1,241.40 : x
  2. Step 2: Convert to fraction form
    2,289.32/3,159.28 = 1,241.40/x
  3. Step 3: Cross multiply
    2,289.32x = 3,159.28 × 1,241.40
  4. Step 4: Simplify right side
    2,289.32x = 3,921,930.19
  5. Step 5: Solve for x
    x = 3,921,930.19/2,289.32
  6. Step 6: Final answer
    x = 1,713.14

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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.