Home / 2,268.48-3,128.04-1,971.12

Finding the Fourth Proportional to 2,268.48, 3,128.04 and 1,971.12

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Solution

The fourth proportional to 2,268.48, 3,128.04 and 1,971.12 is: 2,718.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,268.48 : 3,128.04 = 1,971.12 : x
  2. Step 2: Convert to fraction form
    2,268.48/3,128.04 = 1,971.12/x
  3. Step 3: Cross multiply
    2,268.48x = 3,128.04 × 1,971.12
  4. Step 4: Simplify right side
    2,268.48x = 6,165,742.20
  5. Step 5: Solve for x
    x = 6,165,742.20/2,268.48
  6. Step 6: Final answer
    x = 2,718.01

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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.