Home / 2,388.40-3,582.60-1,089.52

Finding the Fourth Proportional to 2,388.40, 3,582.60 and 1,089.52

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Solution

The fourth proportional to 2,388.40, 3,582.60 and 1,089.52 is: 1,634.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,388.40 : 3,582.60 = 1,089.52 : x
  2. Step 2: Convert to fraction form
    2,388.40/3,582.60 = 1,089.52/x
  3. Step 3: Cross multiply
    2,388.40x = 3,582.60 × 1,089.52
  4. Step 4: Simplify right side
    2,388.40x = 3,903,314.35
  5. Step 5: Solve for x
    x = 3,903,314.35/2,388.40
  6. Step 6: Final answer
    x = 1,634.28

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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.