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Finding the Fourth Proportional to 3,957.30, 5,938.01 and 2,870.63

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Solution

The fourth proportional to 3,957.30, 5,938.01 and 2,870.63 is: 4,307.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,957.30 : 5,938.01 = 2,870.63 : x
  2. Step 2: Convert to fraction form
    3,957.30/5,938.01 = 2,870.63/x
  3. Step 3: Cross multiply
    3,957.30x = 5,938.01 × 2,870.63
  4. Step 4: Simplify right side
    3,957.30x = 17,045,829.65
  5. Step 5: Solve for x
    x = 17,045,829.65/3,957.30
  6. Step 6: Final answer
    x = 4,307.44

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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.