Home / 1,914.43-2,641.95-1,118.22

Finding the Fourth Proportional to 1,914.43, 2,641.95 and 1,118.22

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Solution

The fourth proportional to 1,914.43, 2,641.95 and 1,118.22 is: 1,543.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,914.43 : 2,641.95 = 1,118.22 : x
  2. Step 2: Convert to fraction form
    1,914.43/2,641.95 = 1,118.22/x
  3. Step 3: Cross multiply
    1,914.43x = 2,641.95 × 1,118.22
  4. Step 4: Simplify right side
    1,914.43x = 2,954,281.33
  5. Step 5: Solve for x
    x = 2,954,281.33/1,914.43
  6. Step 6: Final answer
    x = 1,543.16

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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.