Home / 1,435.60-2,151.48-1,229.20

Finding the Fourth Proportional to 1,435.60, 2,151.48 and 1,229.20

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Solution

The fourth proportional to 1,435.60, 2,151.48 and 1,229.20 is: 1,842.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,435.60 : 2,151.48 = 1,229.20 : x
  2. Step 2: Convert to fraction form
    1,435.60/2,151.48 = 1,229.20/x
  3. Step 3: Cross multiply
    1,435.60x = 2,151.48 × 1,229.20
  4. Step 4: Simplify right side
    1,435.60x = 2,644,599.22
  5. Step 5: Solve for x
    x = 2,644,599.22/1,435.60
  6. Step 6: Final answer
    x = 1,842.16

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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.