Home / 2,289.16-3,159.05-1,241.23

Finding the Fourth Proportional to 2,289.16, 3,159.05 and 1,241.23

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Solution

The fourth proportional to 2,289.16, 3,159.05 and 1,241.23 is: 1,712.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289.16 : 3,159.05 = 1,241.23 : x
  2. Step 2: Convert to fraction form
    2,289.16/3,159.05 = 1,241.23/x
  3. Step 3: Cross multiply
    2,289.16x = 3,159.05 × 1,241.23
  4. Step 4: Simplify right side
    2,289.16x = 3,921,094.06
  5. Step 5: Solve for x
    x = 3,921,094.06/2,289.16
  6. Step 6: Final answer
    x = 1,712.89

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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.