Home / 2,475.11-3,415.55-1,479.80

Finding the Fourth Proportional to 2,475.11, 3,415.55 and 1,479.80

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Solution

The fourth proportional to 2,475.11, 3,415.55 and 1,479.80 is: 2,042.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,475.11 : 3,415.55 = 1,479.80 : x
  2. Step 2: Convert to fraction form
    2,475.11/3,415.55 = 1,479.80/x
  3. Step 3: Cross multiply
    2,475.11x = 3,415.55 × 1,479.80
  4. Step 4: Simplify right side
    2,475.11x = 5,054,343.13
  5. Step 5: Solve for x
    x = 5,054,343.13/2,475.11
  6. Step 6: Final answer
    x = 2,042.07

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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.