Home / 7,509.20-11,261.10-3,810.20

Finding the Fourth Proportional to 7,509.20, 11,261.10 and 3,810.20

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Solution

The fourth proportional to 7,509.20, 11,261.10 and 3,810.20 is: 5,713.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,509.20 : 11,261.10 = 3,810.20 : x
  2. Step 2: Convert to fraction form
    7,509.20/11,261.10 = 3,810.20/x
  3. Step 3: Cross multiply
    7,509.20x = 11,261.10 × 3,810.20
  4. Step 4: Simplify right side
    7,509.20x = 42,907,043.22
  5. Step 5: Solve for x
    x = 42,907,043.22/7,509.20
  6. Step 6: Final answer
    x = 5,713.93

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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.