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Finding the Fourth Proportional to 7,889.86, 10,888.04 and 4,353.07

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Solution

The fourth proportional to 7,889.86, 10,888.04 and 4,353.07 is: 6,007.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,889.86 : 10,888.04 = 4,353.07 : x
  2. Step 2: Convert to fraction form
    7,889.86/10,888.04 = 4,353.07/x
  3. Step 3: Cross multiply
    7,889.86x = 10,888.04 × 4,353.07
  4. Step 4: Simplify right side
    7,889.86x = 47,396,400.28
  5. Step 5: Solve for x
    x = 47,396,400.28/7,889.86
  6. Step 6: Final answer
    x = 6,007.25

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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.