Home / 7,727.81-10,664.39-4,191.01

Finding the Fourth Proportional to 7,727.81, 10,664.39 and 4,191.01

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Solution

The fourth proportional to 7,727.81, 10,664.39 and 4,191.01 is: 5,783.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,727.81 : 10,664.39 = 4,191.01 : x
  2. Step 2: Convert to fraction form
    7,727.81/10,664.39 = 4,191.01/x
  3. Step 3: Cross multiply
    7,727.81x = 10,664.39 × 4,191.01
  4. Step 4: Simplify right side
    7,727.81x = 44,694,548.95
  5. Step 5: Solve for x
    x = 44,694,548.95/7,727.81
  6. Step 6: Final answer
    x = 5,783.60

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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.