Home / 1,981.22-2,729.84-1,625.94

Finding the Fourth Proportional to 1,981.22, 2,729.84 and 1,625.94

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Solution

The fourth proportional to 1,981.22, 2,729.84 and 1,625.94 is: 2,240.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981.22 : 2,729.84 = 1,625.94 : x
  2. Step 2: Convert to fraction form
    1,981.22/2,729.84 = 1,625.94/x
  3. Step 3: Cross multiply
    1,981.22x = 2,729.84 × 1,625.94
  4. Step 4: Simplify right side
    1,981.22x = 4,438,547.92
  5. Step 5: Solve for x
    x = 4,438,547.92/1,981.22
  6. Step 6: Final answer
    x = 2,240.32

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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.