Home / 2,176.80-3,004.20-1,479.36

Finding the Fourth Proportional to 2,176.80, 3,004.20 and 1,479.36

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Solution

The fourth proportional to 2,176.80, 3,004.20 and 1,479.36 is: 2,041.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,176.80 : 3,004.20 = 1,479.36 : x
  2. Step 2: Convert to fraction form
    2,176.80/3,004.20 = 1,479.36/x
  3. Step 3: Cross multiply
    2,176.80x = 3,004.20 × 1,479.36
  4. Step 4: Simplify right side
    2,176.80x = 4,444,293.31
  5. Step 5: Solve for x
    x = 4,444,293.31/2,176.80
  6. Step 6: Final answer
    x = 2,041.66

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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.