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Finding the Fourth Proportional to 2,866.64, 4,300.40 and 1,017.60

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Solution

The fourth proportional to 2,866.64, 4,300.40 and 1,017.60 is: 1,526.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,866.64 : 4,300.40 = 1,017.60 : x
  2. Step 2: Convert to fraction form
    2,866.64/4,300.40 = 1,017.60/x
  3. Step 3: Cross multiply
    2,866.64x = 4,300.40 × 1,017.60
  4. Step 4: Simplify right side
    2,866.64x = 4,376,087.04
  5. Step 5: Solve for x
    x = 4,376,087.04/2,866.64
  6. Step 6: Final answer
    x = 1,526.56

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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.