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Finding the Fourth Proportional to 2,700, 4,051.22 and 1,545.75

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Solution

The fourth proportional to 2,700, 4,051.22 and 1,545.75 is: 2,319.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,700 : 4,051.22 = 1,545.75 : x
  2. Step 2: Convert to fraction form
    2,700/4,051.22 = 1,545.75/x
  3. Step 3: Cross multiply
    2,700x = 4,051.22 × 1,545.75
  4. Step 4: Simplify right side
    2,700x = 6,262,165.59
  5. Step 5: Solve for x
    x = 6,262,165.59/2,700
  6. Step 6: Final answer
    x = 2,319.32

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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.