Home / 1,974.04-2,722.86-1,187.26

Finding the Fourth Proportional to 1,974.04, 2,722.86 and 1,187.26

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Solution

The fourth proportional to 1,974.04, 2,722.86 and 1,187.26 is: 1,637.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,974.04 : 2,722.86 = 1,187.26 : x
  2. Step 2: Convert to fraction form
    1,974.04/2,722.86 = 1,187.26/x
  3. Step 3: Cross multiply
    1,974.04x = 2,722.86 × 1,187.26
  4. Step 4: Simplify right side
    1,974.04x = 3,232,742.76
  5. Step 5: Solve for x
    x = 3,232,742.76/1,974.04
  6. Step 6: Final answer
    x = 1,637.63

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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.