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Finding the Fourth Proportional to 3,587.51, 4,951.23 and 2,015.60

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Solution

The fourth proportional to 3,587.51, 4,951.23 and 2,015.60 is: 2,781.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,587.51 : 4,951.23 = 2,015.60 : x
  2. Step 2: Convert to fraction form
    3,587.51/4,951.23 = 2,015.60/x
  3. Step 3: Cross multiply
    3,587.51x = 4,951.23 × 2,015.60
  4. Step 4: Simplify right side
    3,587.51x = 9,979,689.11
  5. Step 5: Solve for x
    x = 9,979,689.11/3,587.51
  6. Step 6: Final answer
    x = 2,781.79

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.