Home / 1,484.21-2,228.13-1,425.48

Finding the Fourth Proportional to 1,484.21, 2,228.13 and 1,425.48

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Solution

The fourth proportional to 1,484.21, 2,228.13 and 1,425.48 is: 2,139.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,484.21 : 2,228.13 = 1,425.48 : x
  2. Step 2: Convert to fraction form
    1,484.21/2,228.13 = 1,425.48/x
  3. Step 3: Cross multiply
    1,484.21x = 2,228.13 × 1,425.48
  4. Step 4: Simplify right side
    1,484.21x = 3,176,154.75
  5. Step 5: Solve for x
    x = 3,176,154.75/1,484.21
  6. Step 6: Final answer
    x = 2,139.97

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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.