Home / 2,979.48-4,464.90-1,678.17

Finding the Fourth Proportional to 2,979.48, 4,464.90 and 1,678.17

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Solution

The fourth proportional to 2,979.48, 4,464.90 and 1,678.17 is: 2,514.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.48 : 4,464.90 = 1,678.17 : x
  2. Step 2: Convert to fraction form
    2,979.48/4,464.90 = 1,678.17/x
  3. Step 3: Cross multiply
    2,979.48x = 4,464.90 × 1,678.17
  4. Step 4: Simplify right side
    2,979.48x = 7,492,861.23
  5. Step 5: Solve for x
    x = 7,492,861.23/2,979.48
  6. Step 6: Final answer
    x = 2,514.82

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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.