Home / 4,551.89-6,279.36-2,780.42

Finding the Fourth Proportional to 4,551.89, 6,279.36 and 2,780.42

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Solution

The fourth proportional to 4,551.89, 6,279.36 and 2,780.42 is: 3,835.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,551.89 : 6,279.36 = 2,780.42 : x
  2. Step 2: Convert to fraction form
    4,551.89/6,279.36 = 2,780.42/x
  3. Step 3: Cross multiply
    4,551.89x = 6,279.36 × 2,780.42
  4. Step 4: Simplify right side
    4,551.89x = 17,459,226.73
  5. Step 5: Solve for x
    x = 17,459,226.73/4,551.89
  6. Step 6: Final answer
    x = 3,835.60

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1.5x scale

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.