Home / 1,484.40-2,220.12-1,212.24

Finding the Fourth Proportional to 1,484.40, 2,220.12 and 1,212.24

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Solution

The fourth proportional to 1,484.40, 2,220.12 and 1,212.24 is: 1,813.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,484.40 : 2,220.12 = 1,212.24 : x
  2. Step 2: Convert to fraction form
    1,484.40/2,220.12 = 1,212.24/x
  3. Step 3: Cross multiply
    1,484.40x = 2,220.12 × 1,212.24
  4. Step 4: Simplify right side
    1,484.40x = 2,691,318.27
  5. Step 5: Solve for x
    x = 2,691,318.27/1,484.40
  6. Step 6: Final answer
    x = 1,813.07

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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.