Home / 1,354.10-2,022.10-1,284.90

Finding the Fourth Proportional to 1,354.10, 2,022.10 and 1,284.90

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Solution

The fourth proportional to 1,354.10, 2,022.10 and 1,284.90 is: 1,918.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,354.10 : 2,022.10 = 1,284.90 : x
  2. Step 2: Convert to fraction form
    1,354.10/2,022.10 = 1,284.90/x
  3. Step 3: Cross multiply
    1,354.10x = 2,022.10 × 1,284.90
  4. Step 4: Simplify right side
    1,354.10x = 2,598,204.10
  5. Step 5: Solve for x
    x = 2,598,204.10/1,354.10
  6. Step 6: Final answer
    x = 1,918.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.