Home / 1,938.46-2,675.08-1,054.28

Finding the Fourth Proportional to 1,938.46, 2,675.08 and 1,054.28

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Solution

The fourth proportional to 1,938.46, 2,675.08 and 1,054.28 is: 1,454.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938.46 : 2,675.08 = 1,054.28 : x
  2. Step 2: Convert to fraction form
    1,938.46/2,675.08 = 1,054.28/x
  3. Step 3: Cross multiply
    1,938.46x = 2,675.08 × 1,054.28
  4. Step 4: Simplify right side
    1,938.46x = 2,820,283.34
  5. Step 5: Solve for x
    x = 2,820,283.34/1,938.46
  6. Step 6: Final answer
    x = 1,454.91

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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.