Home / 2,669.20-4,005.06-1,681.84

Finding the Fourth Proportional to 2,669.20, 4,005.06 and 1,681.84

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Solution

The fourth proportional to 2,669.20, 4,005.06 and 1,681.84 is: 2,523.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,669.20 : 4,005.06 = 1,681.84 : x
  2. Step 2: Convert to fraction form
    2,669.20/4,005.06 = 1,681.84/x
  3. Step 3: Cross multiply
    2,669.20x = 4,005.06 × 1,681.84
  4. Step 4: Simplify right side
    2,669.20x = 6,735,870.11
  5. Step 5: Solve for x
    x = 6,735,870.11/2,669.20
  6. Step 6: Final answer
    x = 2,523.55

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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.