Home / 5,164.28-7,746.36-1,268.72

Finding the Fourth Proportional to 5,164.28, 7,746.36 and 1,268.72

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Solution

The fourth proportional to 5,164.28, 7,746.36 and 1,268.72 is: 1,903.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,164.28 : 7,746.36 = 1,268.72 : x
  2. Step 2: Convert to fraction form
    5,164.28/7,746.36 = 1,268.72/x
  3. Step 3: Cross multiply
    5,164.28x = 7,746.36 × 1,268.72
  4. Step 4: Simplify right side
    5,164.28x = 9,827,976.47
  5. Step 5: Solve for x
    x = 9,827,976.47/5,164.28
  6. Step 6: Final answer
    x = 1,903.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.