Home / 2,287.20-3,428.40-1,055.46

Finding the Fourth Proportional to 2,287.20, 3,428.40 and 1,055.46

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Solution

The fourth proportional to 2,287.20, 3,428.40 and 1,055.46 is: 1,582.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,287.20 : 3,428.40 = 1,055.46 : x
  2. Step 2: Convert to fraction form
    2,287.20/3,428.40 = 1,055.46/x
  3. Step 3: Cross multiply
    2,287.20x = 3,428.40 × 1,055.46
  4. Step 4: Simplify right side
    2,287.20x = 3,618,539.06
  5. Step 5: Solve for x
    x = 3,618,539.06/2,287.20
  6. Step 6: Final answer
    x = 1,582.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.