Home / 7,109.84-9,811.18-4,276.56

Finding the Fourth Proportional to 7,109.84, 9,811.18 and 4,276.56

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Solution

The fourth proportional to 7,109.84, 9,811.18 and 4,276.56 is: 5,901.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,109.84 : 9,811.18 = 4,276.56 : x
  2. Step 2: Convert to fraction form
    7,109.84/9,811.18 = 4,276.56/x
  3. Step 3: Cross multiply
    7,109.84x = 9,811.18 × 4,276.56
  4. Step 4: Simplify right side
    7,109.84x = 41,958,118.02
  5. Step 5: Solve for x
    x = 41,958,118.02/7,109.84
  6. Step 6: Final answer
    x = 5,901.41

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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.