Home / 2,311.59-3,465.99-975.79

Finding the Fourth Proportional to 2,311.59, 3,465.99 and 975.79

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Solution

The fourth proportional to 2,311.59, 3,465.99 and 975.79 is: 1,463.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,311.59 : 3,465.99 = 975.79 : x
  2. Step 2: Convert to fraction form
    2,311.59/3,465.99 = 975.79/x
  3. Step 3: Cross multiply
    2,311.59x = 3,465.99 × 975.79
  4. Step 4: Simplify right side
    2,311.59x = 3,382,078.38
  5. Step 5: Solve for x
    x = 3,382,078.38/2,311.59
  6. Step 6: Final answer
    x = 1,463.10

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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.