Home / 7,087.32-9,778.23-4,102.02

Finding the Fourth Proportional to 7,087.32, 9,778.23 and 4,102.02

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Solution

The fourth proportional to 7,087.32, 9,778.23 and 4,102.02 is: 5,659.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,087.32 : 9,778.23 = 4,102.02 : x
  2. Step 2: Convert to fraction form
    7,087.32/9,778.23 = 4,102.02/x
  3. Step 3: Cross multiply
    7,087.32x = 9,778.23 × 4,102.02
  4. Step 4: Simplify right side
    7,087.32x = 40,110,495.02
  5. Step 5: Solve for x
    x = 40,110,495.02/7,087.32
  6. Step 6: Final answer
    x = 5,659.47

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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.