Home / 1,938.45-2,675.08-1,054.26

Finding the Fourth Proportional to 1,938.45, 2,675.08 and 1,054.26

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Solution

The fourth proportional to 1,938.45, 2,675.08 and 1,054.26 is: 1,454.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938.45 : 2,675.08 = 1,054.26 : x
  2. Step 2: Convert to fraction form
    1,938.45/2,675.08 = 1,054.26/x
  3. Step 3: Cross multiply
    1,938.45x = 2,675.08 × 1,054.26
  4. Step 4: Simplify right side
    1,938.45x = 2,820,231.16
  5. Step 5: Solve for x
    x = 2,820,231.16/1,938.45
  6. Step 6: Final answer
    x = 1,454.89

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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.