Home / 1,799.20-2,482.90-1,090.80

Finding the Fourth Proportional to 1,799.20, 2,482.90 and 1,090.80

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Solution

The fourth proportional to 1,799.20, 2,482.90 and 1,090.80 is: 1,505.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,799.20 : 2,482.90 = 1,090.80 : x
  2. Step 2: Convert to fraction form
    1,799.20/2,482.90 = 1,090.80/x
  3. Step 3: Cross multiply
    1,799.20x = 2,482.90 × 1,090.80
  4. Step 4: Simplify right side
    1,799.20x = 2,708,347.32
  5. Step 5: Solve for x
    x = 2,708,347.32/1,799.20
  6. Step 6: Final answer
    x = 1,505.31

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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.