Home / 4,870.65-6,721.62-2,982.19

Finding the Fourth Proportional to 4,870.65, 6,721.62 and 2,982.19

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Solution

The fourth proportional to 4,870.65, 6,721.62 and 2,982.19 is: 4,115.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,870.65 : 6,721.62 = 2,982.19 : x
  2. Step 2: Convert to fraction form
    4,870.65/6,721.62 = 2,982.19/x
  3. Step 3: Cross multiply
    4,870.65x = 6,721.62 × 2,982.19
  4. Step 4: Simplify right side
    4,870.65x = 20,045,147.95
  5. Step 5: Solve for x
    x = 20,045,147.95/4,870.65
  6. Step 6: Final answer
    x = 4,115.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.