Home / 4,122.80-5,688.84-2,354.08

Finding the Fourth Proportional to 4,122.80, 5,688.84 and 2,354.08

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Solution

The fourth proportional to 4,122.80, 5,688.84 and 2,354.08 is: 3,248.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,122.80 : 5,688.84 = 2,354.08 : x
  2. Step 2: Convert to fraction form
    4,122.80/5,688.84 = 2,354.08/x
  3. Step 3: Cross multiply
    4,122.80x = 5,688.84 × 2,354.08
  4. Step 4: Simplify right side
    4,122.80x = 13,391,984.47
  5. Step 5: Solve for x
    x = 13,391,984.47/4,122.80
  6. Step 6: Final answer
    x = 3,248.27

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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.