Home / 7,727.40-11,591.64-3,345.12

Finding the Fourth Proportional to 7,727.40, 11,591.64 and 3,345.12

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Solution

The fourth proportional to 7,727.40, 11,591.64 and 3,345.12 is: 5,017.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,727.40 : 11,591.64 = 3,345.12 : x
  2. Step 2: Convert to fraction form
    7,727.40/11,591.64 = 3,345.12/x
  3. Step 3: Cross multiply
    7,727.40x = 11,591.64 × 3,345.12
  4. Step 4: Simplify right side
    7,727.40x = 38,775,426.80
  5. Step 5: Solve for x
    x = 38,775,426.80/7,727.40
  6. Step 6: Final answer
    x = 5,017.91

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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.