Home / 1,913.49-2,640.45-1,074.06

Finding the Fourth Proportional to 1,913.49, 2,640.45 and 1,074.06

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Solution

The fourth proportional to 1,913.49, 2,640.45 and 1,074.06 is: 1,482.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913.49 : 2,640.45 = 1,074.06 : x
  2. Step 2: Convert to fraction form
    1,913.49/2,640.45 = 1,074.06/x
  3. Step 3: Cross multiply
    1,913.49x = 2,640.45 × 1,074.06
  4. Step 4: Simplify right side
    1,913.49x = 2,836,001.73
  5. Step 5: Solve for x
    x = 2,836,001.73/1,913.49
  6. Step 6: Final answer
    x = 1,482.11

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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.