Home / 4,811.98-6,639.69-2,715.70

Finding the Fourth Proportional to 4,811.98, 6,639.69 and 2,715.70

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Solution

The fourth proportional to 4,811.98, 6,639.69 and 2,715.70 is: 3,747.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,811.98 : 6,639.69 = 2,715.70 : x
  2. Step 2: Convert to fraction form
    4,811.98/6,639.69 = 2,715.70/x
  3. Step 3: Cross multiply
    4,811.98x = 6,639.69 × 2,715.70
  4. Step 4: Simplify right side
    4,811.98x = 18,031,406.13
  5. Step 5: Solve for x
    x = 18,031,406.13/4,811.98
  6. Step 6: Final answer
    x = 3,747.19

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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.