Home / 4,549.63-6,278.55-2,780.86

Finding the Fourth Proportional to 4,549.63, 6,278.55 and 2,780.86

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Solution

The fourth proportional to 4,549.63, 6,278.55 and 2,780.86 is: 3,837.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,549.63 : 6,278.55 = 2,780.86 : x
  2. Step 2: Convert to fraction form
    4,549.63/6,278.55 = 2,780.86/x
  3. Step 3: Cross multiply
    4,549.63x = 6,278.55 × 2,780.86
  4. Step 4: Simplify right side
    4,549.63x = 17,459,768.55
  5. Step 5: Solve for x
    x = 17,459,768.55/4,549.63
  6. Step 6: Final answer
    x = 3,837.62

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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.