Home / 2,484.90-3,428.21-1,422.45

Finding the Fourth Proportional to 2,484.90, 3,428.21 and 1,422.45

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Solution

The fourth proportional to 2,484.90, 3,428.21 and 1,422.45 is: 1,962.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,484.90 : 3,428.21 = 1,422.45 : x
  2. Step 2: Convert to fraction form
    2,484.90/3,428.21 = 1,422.45/x
  3. Step 3: Cross multiply
    2,484.90x = 3,428.21 × 1,422.45
  4. Step 4: Simplify right side
    2,484.90x = 4,876,457.31
  5. Step 5: Solve for x
    x = 4,876,457.31/2,484.90
  6. Step 6: Final answer
    x = 1,962.44

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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.