Home / 2,313.59-3,468.99-977.79

Finding the Fourth Proportional to 2,313.59, 3,468.99 and 977.79

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Solution

The fourth proportional to 2,313.59, 3,468.99 and 977.79 is: 1,466.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,313.59 : 3,468.99 = 977.79 : x
  2. Step 2: Convert to fraction form
    2,313.59/3,468.99 = 977.79/x
  3. Step 3: Cross multiply
    2,313.59x = 3,468.99 × 977.79
  4. Step 4: Simplify right side
    2,313.59x = 3,391,943.73
  5. Step 5: Solve for x
    x = 3,391,943.73/2,313.59
  6. Step 6: Final answer
    x = 1,466.10

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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.