Home / 1,479.49-2,229.41-1,225.21

Finding the Fourth Proportional to 1,479.49, 2,229.41 and 1,225.21

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Solution

The fourth proportional to 1,479.49, 2,229.41 and 1,225.21 is: 1,846.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,479.49 : 2,229.41 = 1,225.21 : x
  2. Step 2: Convert to fraction form
    1,479.49/2,229.41 = 1,225.21/x
  3. Step 3: Cross multiply
    1,479.49x = 2,229.41 × 1,225.21
  4. Step 4: Simplify right side
    1,479.49x = 2,731,495.43
  5. Step 5: Solve for x
    x = 2,731,495.43/1,479.49
  6. Step 6: Final answer
    x = 1,846.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.