Home / 2,864.34-4,257.88-2,780.26

Finding the Fourth Proportional to 2,864.34, 4,257.88 and 2,780.26

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Solution

The fourth proportional to 2,864.34, 4,257.88 and 2,780.26 is: 4,132.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,864.34 : 4,257.88 = 2,780.26 : x
  2. Step 2: Convert to fraction form
    2,864.34/4,257.88 = 2,780.26/x
  3. Step 3: Cross multiply
    2,864.34x = 4,257.88 × 2,780.26
  4. Step 4: Simplify right side
    2,864.34x = 11,838,013.45
  5. Step 5: Solve for x
    x = 11,838,013.45/2,864.34
  6. Step 6: Final answer
    x = 4,132.89

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.