Home / 5,458.91-8,189.64-1,563.21

Finding the Fourth Proportional to 5,458.91, 8,189.64 and 1,563.21

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Solution

The fourth proportional to 5,458.91, 8,189.64 and 1,563.21 is: 2,345.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,458.91 : 8,189.64 = 1,563.21 : x
  2. Step 2: Convert to fraction form
    5,458.91/8,189.64 = 1,563.21/x
  3. Step 3: Cross multiply
    5,458.91x = 8,189.64 × 1,563.21
  4. Step 4: Simplify right side
    5,458.91x = 12,802,127.14
  5. Step 5: Solve for x
    x = 12,802,127.14/5,458.91
  6. Step 6: Final answer
    x = 2,345.18

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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.