Home / 1,648.11-2,270.61-1,355.25

Finding the Fourth Proportional to 1,648.11, 2,270.61 and 1,355.25

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Solution

The fourth proportional to 1,648.11, 2,270.61 and 1,355.25 is: 1,867.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,648.11 : 2,270.61 = 1,355.25 : x
  2. Step 2: Convert to fraction form
    1,648.11/2,270.61 = 1,355.25/x
  3. Step 3: Cross multiply
    1,648.11x = 2,270.61 × 1,355.25
  4. Step 4: Simplify right side
    1,648.11x = 3,077,244.20
  5. Step 5: Solve for x
    x = 3,077,244.20/1,648.11
  6. Step 6: Final answer
    x = 1,867.14

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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.