Home / 2,289.16-3,158.98-1,241.20

Finding the Fourth Proportional to 2,289.16, 3,158.98 and 1,241.20

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Solution

The fourth proportional to 2,289.16, 3,158.98 and 1,241.20 is: 1,712.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289.16 : 3,158.98 = 1,241.20 : x
  2. Step 2: Convert to fraction form
    2,289.16/3,158.98 = 1,241.20/x
  3. Step 3: Cross multiply
    2,289.16x = 3,158.98 × 1,241.20
  4. Step 4: Simplify right side
    2,289.16x = 3,920,925.98
  5. Step 5: Solve for x
    x = 3,920,925.98/2,289.16
  6. Step 6: Final answer
    x = 1,712.82

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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.