Home / 2,439.03-3,656.38-977.18

Finding the Fourth Proportional to 2,439.03, 3,656.38 and 977.18

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Solution

The fourth proportional to 2,439.03, 3,656.38 and 977.18 is: 1,464.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,439.03 : 3,656.38 = 977.18 : x
  2. Step 2: Convert to fraction form
    2,439.03/3,656.38 = 977.18/x
  3. Step 3: Cross multiply
    2,439.03x = 3,656.38 × 977.18
  4. Step 4: Simplify right side
    2,439.03x = 3,572,929.82
  5. Step 5: Solve for x
    x = 3,572,929.82/2,439.03
  6. Step 6: Final answer
    x = 1,464.90

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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.