Home / 1,938.96-2,675.75-1,054.76

Finding the Fourth Proportional to 1,938.96, 2,675.75 and 1,054.76

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Solution

The fourth proportional to 1,938.96, 2,675.75 and 1,054.76 is: 1,455.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938.96 : 2,675.75 = 1,054.76 : x
  2. Step 2: Convert to fraction form
    1,938.96/2,675.75 = 1,054.76/x
  3. Step 3: Cross multiply
    1,938.96x = 2,675.75 × 1,054.76
  4. Step 4: Simplify right side
    1,938.96x = 2,822,268.80
  5. Step 5: Solve for x
    x = 2,822,268.80/1,938.96
  6. Step 6: Final answer
    x = 1,455.56

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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.