Home / 4,051.79-6,077.72-1,278.69

Finding the Fourth Proportional to 4,051.79, 6,077.72 and 1,278.69

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Solution

The fourth proportional to 4,051.79, 6,077.72 and 1,278.69 is: 1,918.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,051.79 : 6,077.72 = 1,278.69 : x
  2. Step 2: Convert to fraction form
    4,051.79/6,077.72 = 1,278.69/x
  3. Step 3: Cross multiply
    4,051.79x = 6,077.72 × 1,278.69
  4. Step 4: Simplify right side
    4,051.79x = 7,771,493.00
  5. Step 5: Solve for x
    x = 7,771,493.00/4,051.79
  6. Step 6: Final answer
    x = 1,918.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.