Home / 4,679.67-7,020.95-2,807.65

Finding the Fourth Proportional to 4,679.67, 7,020.95 and 2,807.65

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Solution

The fourth proportional to 4,679.67, 7,020.95 and 2,807.65 is: 4,212.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,679.67 : 7,020.95 = 2,807.65 : x
  2. Step 2: Convert to fraction form
    4,679.67/7,020.95 = 2,807.65/x
  3. Step 3: Cross multiply
    4,679.67x = 7,020.95 × 2,807.65
  4. Step 4: Simplify right side
    4,679.67x = 19,712,356.61
  5. Step 5: Solve for x
    x = 19,712,356.61/4,679.67
  6. Step 6: Final answer
    x = 4,212.34

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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.