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Finding the Fourth Proportional to 1,801.90, 2,480.38 and 1,554.04

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Solution

The fourth proportional to 1,801.90, 2,480.38 and 1,554.04 is: 2,139.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,801.90 : 2,480.38 = 1,554.04 : x
  2. Step 2: Convert to fraction form
    1,801.90/2,480.38 = 1,554.04/x
  3. Step 3: Cross multiply
    1,801.90x = 2,480.38 × 1,554.04
  4. Step 4: Simplify right side
    1,801.90x = 3,854,609.74
  5. Step 5: Solve for x
    x = 3,854,609.74/1,801.90
  6. Step 6: Final answer
    x = 2,139.19

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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.