Home / 1,979.08-2,967.18-1,210.12

Finding the Fourth Proportional to 1,979.08, 2,967.18 and 1,210.12

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Solution

The fourth proportional to 1,979.08, 2,967.18 and 1,210.12 is: 1,814.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979.08 : 2,967.18 = 1,210.12 : x
  2. Step 2: Convert to fraction form
    1,979.08/2,967.18 = 1,210.12/x
  3. Step 3: Cross multiply
    1,979.08x = 2,967.18 × 1,210.12
  4. Step 4: Simplify right side
    1,979.08x = 3,590,643.86
  5. Step 5: Solve for x
    x = 3,590,643.86/1,979.08
  6. Step 6: Final answer
    x = 1,814.30

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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.