Home / 7,724.72-11,587.60-3,828.08

Finding the Fourth Proportional to 7,724.72, 11,587.60 and 3,828.08

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Solution

The fourth proportional to 7,724.72, 11,587.60 and 3,828.08 is: 5,742.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,724.72 : 11,587.60 = 3,828.08 : x
  2. Step 2: Convert to fraction form
    7,724.72/11,587.60 = 3,828.08/x
  3. Step 3: Cross multiply
    7,724.72x = 11,587.60 × 3,828.08
  4. Step 4: Simplify right side
    7,724.72x = 44,358,259.81
  5. Step 5: Solve for x
    x = 44,358,259.81/7,724.72
  6. Step 6: Final answer
    x = 5,742.38

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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.