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Finding the Fourth Proportional to 3,373.79, 4,655.72 and 1,840.65

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Solution

The fourth proportional to 3,373.79, 4,655.72 and 1,840.65 is: 2,540.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,373.79 : 4,655.72 = 1,840.65 : x
  2. Step 2: Convert to fraction form
    3,373.79/4,655.72 = 1,840.65/x
  3. Step 3: Cross multiply
    3,373.79x = 4,655.72 × 1,840.65
  4. Step 4: Simplify right side
    3,373.79x = 8,569,566.18
  5. Step 5: Solve for x
    x = 8,569,566.18/3,373.79
  6. Step 6: Final answer
    x = 2,540.05

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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.