Home / 1,646.96-2,272.84-948.16

Finding the Fourth Proportional to 1,646.96, 2,272.84 and 948.16

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Solution

The fourth proportional to 1,646.96, 2,272.84 and 948.16 is: 1,308.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,646.96 : 2,272.84 = 948.16 : x
  2. Step 2: Convert to fraction form
    1,646.96/2,272.84 = 948.16/x
  3. Step 3: Cross multiply
    1,646.96x = 2,272.84 × 948.16
  4. Step 4: Simplify right side
    1,646.96x = 2,155,015.97
  5. Step 5: Solve for x
    x = 2,155,015.97/1,646.96
  6. Step 6: Final answer
    x = 1,308.48

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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.