Home / 7,280.19-10,914.73-3,328.71

Finding the Fourth Proportional to 7,280.19, 10,914.73 and 3,328.71

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Solution

The fourth proportional to 7,280.19, 10,914.73 and 3,328.71 is: 4,990.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,280.19 : 10,914.73 = 3,328.71 : x
  2. Step 2: Convert to fraction form
    7,280.19/10,914.73 = 3,328.71/x
  3. Step 3: Cross multiply
    7,280.19x = 10,914.73 × 3,328.71
  4. Step 4: Simplify right side
    7,280.19x = 36,331,970.90
  5. Step 5: Solve for x
    x = 36,331,970.90/7,280.19
  6. Step 6: Final answer
    x = 4,990.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.