Home / 1,479.58-2,209.78-1,340.48

Finding the Fourth Proportional to 1,479.58, 2,209.78 and 1,340.48

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Solution

The fourth proportional to 1,479.58, 2,209.78 and 1,340.48 is: 2,002.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,479.58 : 2,209.78 = 1,340.48 : x
  2. Step 2: Convert to fraction form
    1,479.58/2,209.78 = 1,340.48/x
  3. Step 3: Cross multiply
    1,479.58x = 2,209.78 × 1,340.48
  4. Step 4: Simplify right side
    1,479.58x = 2,962,153.12
  5. Step 5: Solve for x
    x = 2,962,153.12/1,479.58
  6. Step 6: Final answer
    x = 2,002.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.