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Finding the Fourth Proportional to 4,485.65, 6,731.37 and 1,888.61

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Solution

The fourth proportional to 4,485.65, 6,731.37 and 1,888.61 is: 2,834.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,485.65 : 6,731.37 = 1,888.61 : x
  2. Step 2: Convert to fraction form
    4,485.65/6,731.37 = 1,888.61/x
  3. Step 3: Cross multiply
    4,485.65x = 6,731.37 × 1,888.61
  4. Step 4: Simplify right side
    4,485.65x = 12,712,899.04
  5. Step 5: Solve for x
    x = 12,712,899.04/4,485.65
  6. Step 6: Final answer
    x = 2,834.13

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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.