Home / 2,649.06-3,970.80-1,922.04

Finding the Fourth Proportional to 2,649.06, 3,970.80 and 1,922.04

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Solution

The fourth proportional to 2,649.06, 3,970.80 and 1,922.04 is: 2,881.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,649.06 : 3,970.80 = 1,922.04 : x
  2. Step 2: Convert to fraction form
    2,649.06/3,970.80 = 1,922.04/x
  3. Step 3: Cross multiply
    2,649.06x = 3,970.80 × 1,922.04
  4. Step 4: Simplify right side
    2,649.06x = 7,632,036.43
  5. Step 5: Solve for x
    x = 7,632,036.43/2,649.06
  6. Step 6: Final answer
    x = 2,881.04

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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.