Home / 1,349.68-2,022.36-1,220.08

Finding the Fourth Proportional to 1,349.68, 2,022.36 and 1,220.08

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Solution

The fourth proportional to 1,349.68, 2,022.36 and 1,220.08 is: 1,828.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,349.68 : 2,022.36 = 1,220.08 : x
  2. Step 2: Convert to fraction form
    1,349.68/2,022.36 = 1,220.08/x
  3. Step 3: Cross multiply
    1,349.68x = 2,022.36 × 1,220.08
  4. Step 4: Simplify right side
    1,349.68x = 2,467,440.99
  5. Step 5: Solve for x
    x = 2,467,440.99/1,349.68
  6. Step 6: Final answer
    x = 1,828.17

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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.