Home / 2,368.64-3,552.96-1,215.20

Finding the Fourth Proportional to 2,368.64, 3,552.96 and 1,215.20

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Solution

The fourth proportional to 2,368.64, 3,552.96 and 1,215.20 is: 1,822.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,368.64 : 3,552.96 = 1,215.20 : x
  2. Step 2: Convert to fraction form
    2,368.64/3,552.96 = 1,215.20/x
  3. Step 3: Cross multiply
    2,368.64x = 3,552.96 × 1,215.20
  4. Step 4: Simplify right side
    2,368.64x = 4,317,556.99
  5. Step 5: Solve for x
    x = 4,317,556.99/2,368.64
  6. Step 6: Final answer
    x = 1,822.80

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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.