Home / 2,484.45-3,428.21-1,422.09

Finding the Fourth Proportional to 2,484.45, 3,428.21 and 1,422.09

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Solution

The fourth proportional to 2,484.45, 3,428.21 and 1,422.09 is: 1,962.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,484.45 : 3,428.21 = 1,422.09 : x
  2. Step 2: Convert to fraction form
    2,484.45/3,428.21 = 1,422.09/x
  3. Step 3: Cross multiply
    2,484.45x = 3,428.21 × 1,422.09
  4. Step 4: Simplify right side
    2,484.45x = 4,875,226.71
  5. Step 5: Solve for x
    x = 4,875,226.71/2,484.45
  6. Step 6: Final answer
    x = 1,962.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.