Home / 3,509.29-5,267.72-3,121.76

Finding the Fourth Proportional to 3,509.29, 5,267.72 and 3,121.76

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Solution

The fourth proportional to 3,509.29, 5,267.72 and 3,121.76 is: 4,686.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,509.29 : 5,267.72 = 3,121.76 : x
  2. Step 2: Convert to fraction form
    3,509.29/5,267.72 = 3,121.76/x
  3. Step 3: Cross multiply
    3,509.29x = 5,267.72 × 3,121.76
  4. Step 4: Simplify right side
    3,509.29x = 16,444,541.98
  5. Step 5: Solve for x
    x = 16,444,541.98/3,509.29
  6. Step 6: Final answer
    x = 4,686.01

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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.