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Finding the Fourth Proportional to 7,110.86, 9,807.08 and 5,339.39

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Solution

The fourth proportional to 7,110.86, 9,807.08 and 5,339.39 is: 7,363.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,110.86 : 9,807.08 = 5,339.39 : x
  2. Step 2: Convert to fraction form
    7,110.86/9,807.08 = 5,339.39/x
  3. Step 3: Cross multiply
    7,110.86x = 9,807.08 × 5,339.39
  4. Step 4: Simplify right side
    7,110.86x = 52,363,749.15
  5. Step 5: Solve for x
    x = 52,363,749.15/7,110.86
  6. Step 6: Final answer
    x = 7,363.92

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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.