Home / 2,646.18-3,654.72-1,805.45

Finding the Fourth Proportional to 2,646.18, 3,654.72 and 1,805.45

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Solution

The fourth proportional to 2,646.18, 3,654.72 and 1,805.45 is: 2,493.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,646.18 : 3,654.72 = 1,805.45 : x
  2. Step 2: Convert to fraction form
    2,646.18/3,654.72 = 1,805.45/x
  3. Step 3: Cross multiply
    2,646.18x = 3,654.72 × 1,805.45
  4. Step 4: Simplify right side
    2,646.18x = 6,598,395.95
  5. Step 5: Solve for x
    x = 6,598,395.95/2,646.18
  6. Step 6: Final answer
    x = 2,493.56

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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.