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Finding the Fourth Proportional to 2,317.04, 3,476.04 and 778

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Solution

The fourth proportional to 2,317.04, 3,476.04 and 778 is: 1,167.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,317.04 : 3,476.04 = 778 : x
  2. Step 2: Convert to fraction form
    2,317.04/3,476.04 = 778/x
  3. Step 3: Cross multiply
    2,317.04x = 3,476.04 × 778
  4. Step 4: Simplify right side
    2,317.04x = 2,704,359.12
  5. Step 5: Solve for x
    x = 2,704,359.12/2,317.04
  6. Step 6: Final answer
    x = 1,167.16

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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.