Home / 4,053.50-6,078.10-1,279.45

Finding the Fourth Proportional to 4,053.50, 6,078.10 and 1,279.45

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Solution

The fourth proportional to 4,053.50, 6,078.10 and 1,279.45 is: 1,918.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,053.50 : 6,078.10 = 1,279.45 : x
  2. Step 2: Convert to fraction form
    4,053.50/6,078.10 = 1,279.45/x
  3. Step 3: Cross multiply
    4,053.50x = 6,078.10 × 1,279.45
  4. Step 4: Simplify right side
    4,053.50x = 7,776,625.05
  5. Step 5: Solve for x
    x = 7,776,625.05/4,053.50
  6. Step 6: Final answer
    x = 1,918.50

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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.