Home / 3,509.01-4,828.25-3,387.78

Finding the Fourth Proportional to 3,509.01, 4,828.25 and 3,387.78

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Solution

The fourth proportional to 3,509.01, 4,828.25 and 3,387.78 is: 4,661.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,509.01 : 4,828.25 = 3,387.78 : x
  2. Step 2: Convert to fraction form
    3,509.01/4,828.25 = 3,387.78/x
  3. Step 3: Cross multiply
    3,509.01x = 4,828.25 × 3,387.78
  4. Step 4: Simplify right side
    3,509.01x = 16,357,031.85
  5. Step 5: Solve for x
    x = 16,357,031.85/3,509.01
  6. Step 6: Final answer
    x = 4,661.44

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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.