Home / 2,635.40-3,956.70-1,663.40

Finding the Fourth Proportional to 2,635.40, 3,956.70 and 1,663.40

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Solution

The fourth proportional to 2,635.40, 3,956.70 and 1,663.40 is: 2,497.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,635.40 : 3,956.70 = 1,663.40 : x
  2. Step 2: Convert to fraction form
    2,635.40/3,956.70 = 1,663.40/x
  3. Step 3: Cross multiply
    2,635.40x = 3,956.70 × 1,663.40
  4. Step 4: Simplify right side
    2,635.40x = 6,581,574.78
  5. Step 5: Solve for x
    x = 6,581,574.78/2,635.40
  6. Step 6: Final answer
    x = 2,497.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.