Home / 1,938.80-2,675.61-1,110.96

Finding the Fourth Proportional to 1,938.80, 2,675.61 and 1,110.96

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Solution

The fourth proportional to 1,938.80, 2,675.61 and 1,110.96 is: 1,533.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938.80 : 2,675.61 = 1,110.96 : x
  2. Step 2: Convert to fraction form
    1,938.80/2,675.61 = 1,110.96/x
  3. Step 3: Cross multiply
    1,938.80x = 2,675.61 × 1,110.96
  4. Step 4: Simplify right side
    1,938.80x = 2,972,479.53
  5. Step 5: Solve for x
    x = 2,972,479.53/1,938.80
  6. Step 6: Final answer
    x = 1,533.16

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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.