Home / 5,443.36-8,165.52-1,979.68

Finding the Fourth Proportional to 5,443.36, 8,165.52 and 1,979.68

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Solution

The fourth proportional to 5,443.36, 8,165.52 and 1,979.68 is: 2,969.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,443.36 : 8,165.52 = 1,979.68 : x
  2. Step 2: Convert to fraction form
    5,443.36/8,165.52 = 1,979.68/x
  3. Step 3: Cross multiply
    5,443.36x = 8,165.52 × 1,979.68
  4. Step 4: Simplify right side
    5,443.36x = 16,165,116.63
  5. Step 5: Solve for x
    x = 16,165,116.63/5,443.36
  6. Step 6: Final answer
    x = 2,969.69

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1.5x scale

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.