Home / 7,280.10-10,916.70-3,330.20

Finding the Fourth Proportional to 7,280.10, 10,916.70 and 3,330.20

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Solution

The fourth proportional to 7,280.10, 10,916.70 and 3,330.20 is: 4,993.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,280.10 : 10,916.70 = 3,330.20 : x
  2. Step 2: Convert to fraction form
    7,280.10/10,916.70 = 3,330.20/x
  3. Step 3: Cross multiply
    7,280.10x = 10,916.70 × 3,330.20
  4. Step 4: Simplify right side
    7,280.10x = 36,354,739.76
  5. Step 5: Solve for x
    x = 36,354,739.76/7,280.10
  6. Step 6: Final answer
    x = 4,993.71

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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.