Home / 7,456.28-10,289.70-4,099.39

Finding the Fourth Proportional to 7,456.28, 10,289.70 and 4,099.39

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Solution

The fourth proportional to 7,456.28, 10,289.70 and 4,099.39 is: 5,657.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,456.28 : 10,289.70 = 4,099.39 : x
  2. Step 2: Convert to fraction form
    7,456.28/10,289.70 = 4,099.39/x
  3. Step 3: Cross multiply
    7,456.28x = 10,289.70 × 4,099.39
  4. Step 4: Simplify right side
    7,456.28x = 42,181,493.28
  5. Step 5: Solve for x
    x = 42,181,493.28/7,456.28
  6. Step 6: Final answer
    x = 5,657.18

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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.