Home / 4,811.05-6,639.45-2,686.69

Finding the Fourth Proportional to 4,811.05, 6,639.45 and 2,686.69

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Solution

The fourth proportional to 4,811.05, 6,639.45 and 2,686.69 is: 3,707.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,811.05 : 6,639.45 = 2,686.69 : x
  2. Step 2: Convert to fraction form
    4,811.05/6,639.45 = 2,686.69/x
  3. Step 3: Cross multiply
    4,811.05x = 6,639.45 × 2,686.69
  4. Step 4: Simplify right side
    4,811.05x = 17,838,142.14
  5. Step 5: Solve for x
    x = 17,838,142.14/4,811.05
  6. Step 6: Final answer
    x = 3,707.74

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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.