Home / 2,439.18-3,657.96-977.94

Finding the Fourth Proportional to 2,439.18, 3,657.96 and 977.94

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Solution

The fourth proportional to 2,439.18, 3,657.96 and 977.94 is: 1,466.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,439.18 : 3,657.96 = 977.94 : x
  2. Step 2: Convert to fraction form
    2,439.18/3,657.96 = 977.94/x
  3. Step 3: Cross multiply
    2,439.18x = 3,657.96 × 977.94
  4. Step 4: Simplify right side
    2,439.18x = 3,577,265.40
  5. Step 5: Solve for x
    x = 3,577,265.40/2,439.18
  6. Step 6: Final answer
    x = 1,466.59

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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.