Home / 5,389.28-8,087.16-5,345.36

Finding the Fourth Proportional to 5,389.28, 8,087.16 and 5,345.36

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Solution

The fourth proportional to 5,389.28, 8,087.16 and 5,345.36 is: 8,021.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.28 : 8,087.16 = 5,345.36 : x
  2. Step 2: Convert to fraction form
    5,389.28/8,087.16 = 5,345.36/x
  3. Step 3: Cross multiply
    5,389.28x = 8,087.16 × 5,345.36
  4. Step 4: Simplify right side
    5,389.28x = 43,228,781.58
  5. Step 5: Solve for x
    x = 43,228,781.58/5,389.28
  6. Step 6: Final answer
    x = 8,021.25

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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.