Home / 2,622.68-3,931.80-1,798.92

Finding the Fourth Proportional to 2,622.68, 3,931.80 and 1,798.92

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Solution

The fourth proportional to 2,622.68, 3,931.80 and 1,798.92 is: 2,696.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,622.68 : 3,931.80 = 1,798.92 : x
  2. Step 2: Convert to fraction form
    2,622.68/3,931.80 = 1,798.92/x
  3. Step 3: Cross multiply
    2,622.68x = 3,931.80 × 1,798.92
  4. Step 4: Simplify right side
    2,622.68x = 7,072,993.66
  5. Step 5: Solve for x
    x = 7,072,993.66/2,622.68
  6. Step 6: Final answer
    x = 2,696.86

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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.