Home / 7,290.20-10,938.39-3,592.45

Finding the Fourth Proportional to 7,290.20, 10,938.39 and 3,592.45

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Solution

The fourth proportional to 7,290.20, 10,938.39 and 3,592.45 is: 5,390.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,290.20 : 10,938.39 = 3,592.45 : x
  2. Step 2: Convert to fraction form
    7,290.20/10,938.39 = 3,592.45/x
  3. Step 3: Cross multiply
    7,290.20x = 10,938.39 × 3,592.45
  4. Step 4: Simplify right side
    7,290.20x = 39,295,639.56
  5. Step 5: Solve for x
    x = 39,295,639.56/7,290.20
  6. Step 6: Final answer
    x = 5,390.20

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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.