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Finding the Fourth Proportional to 4,870.80, 7,304.40 and 2,404.80

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Solution

The fourth proportional to 4,870.80, 7,304.40 and 2,404.80 is: 3,606.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,870.80 : 7,304.40 = 2,404.80 : x
  2. Step 2: Convert to fraction form
    4,870.80/7,304.40 = 2,404.80/x
  3. Step 3: Cross multiply
    4,870.80x = 7,304.40 × 2,404.80
  4. Step 4: Simplify right side
    4,870.80x = 17,565,621.12
  5. Step 5: Solve for x
    x = 17,565,621.12/4,870.80
  6. Step 6: Final answer
    x = 3,606.31

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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.