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Finding the Fourth Proportional to 2,318.76, 3,477.84 and 587.28

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Solution

The fourth proportional to 2,318.76, 3,477.84 and 587.28 is: 880.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,318.76 : 3,477.84 = 587.28 : x
  2. Step 2: Convert to fraction form
    2,318.76/3,477.84 = 587.28/x
  3. Step 3: Cross multiply
    2,318.76x = 3,477.84 × 587.28
  4. Step 4: Simplify right side
    2,318.76x = 2,042,465.88
  5. Step 5: Solve for x
    x = 2,042,465.88/2,318.76
  6. Step 6: Final answer
    x = 880.84

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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.