Home / 4,288.80-6,406.56-4,268.64

Finding the Fourth Proportional to 4,288.80, 6,406.56 and 4,268.64

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Solution

The fourth proportional to 4,288.80, 6,406.56 and 4,268.64 is: 6,376.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,288.80 : 6,406.56 = 4,268.64 : x
  2. Step 2: Convert to fraction form
    4,288.80/6,406.56 = 4,268.64/x
  3. Step 3: Cross multiply
    4,288.80x = 6,406.56 × 4,268.64
  4. Step 4: Simplify right side
    4,288.80x = 27,347,298.28
  5. Step 5: Solve for x
    x = 27,347,298.28/4,288.80
  6. Step 6: Final answer
    x = 6,376.45

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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.