Home / 3,261.78-4,501.20-1,864.50

Finding the Fourth Proportional to 3,261.78, 4,501.20 and 1,864.50

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Solution

The fourth proportional to 3,261.78, 4,501.20 and 1,864.50 is: 2,572.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,261.78 : 4,501.20 = 1,864.50 : x
  2. Step 2: Convert to fraction form
    3,261.78/4,501.20 = 1,864.50/x
  3. Step 3: Cross multiply
    3,261.78x = 4,501.20 × 1,864.50
  4. Step 4: Simplify right side
    3,261.78x = 8,392,487.40
  5. Step 5: Solve for x
    x = 8,392,487.40/3,261.78
  6. Step 6: Final answer
    x = 2,572.98

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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.