Home / 4,053.60-6,080.40-1,280.49

Finding the Fourth Proportional to 4,053.60, 6,080.40 and 1,280.49

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Solution

The fourth proportional to 4,053.60, 6,080.40 and 1,280.49 is: 1,920.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,053.60 : 6,080.40 = 1,280.49 : x
  2. Step 2: Convert to fraction form
    4,053.60/6,080.40 = 1,280.49/x
  3. Step 3: Cross multiply
    4,053.60x = 6,080.40 × 1,280.49
  4. Step 4: Simplify right side
    4,053.60x = 7,785,891.40
  5. Step 5: Solve for x
    x = 7,785,891.40/4,053.60
  6. Step 6: Final answer
    x = 1,920.74

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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.