Home / 2,712.08-4,066.32-1,068.80

Finding the Fourth Proportional to 2,712.08, 4,066.32 and 1,068.80

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Solution

The fourth proportional to 2,712.08, 4,066.32 and 1,068.80 is: 1,602.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,712.08 : 4,066.32 = 1,068.80 : x
  2. Step 2: Convert to fraction form
    2,712.08/4,066.32 = 1,068.80/x
  3. Step 3: Cross multiply
    2,712.08x = 4,066.32 × 1,068.80
  4. Step 4: Simplify right side
    2,712.08x = 4,346,082.82
  5. Step 5: Solve for x
    x = 4,346,082.82/2,712.08
  6. Step 6: Final answer
    x = 1,602.49

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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.