Home / 4,254.70-6,373.74-2,789.40

Finding the Fourth Proportional to 4,254.70, 6,373.74 and 2,789.40

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Solution

The fourth proportional to 4,254.70, 6,373.74 and 2,789.40 is: 4,178.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,254.70 : 6,373.74 = 2,789.40 : x
  2. Step 2: Convert to fraction form
    4,254.70/6,373.74 = 2,789.40/x
  3. Step 3: Cross multiply
    4,254.70x = 6,373.74 × 2,789.40
  4. Step 4: Simplify right side
    4,254.70x = 17,778,910.36
  5. Step 5: Solve for x
    x = 17,778,910.36/4,254.70
  6. Step 6: Final answer
    x = 4,178.65

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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.