Home / 5,392.52-8,088.79-3,420.12

Finding the Fourth Proportional to 5,392.52, 8,088.79 and 3,420.12

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Solution

The fourth proportional to 5,392.52, 8,088.79 and 3,420.12 is: 5,130.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,392.52 : 8,088.79 = 3,420.12 : x
  2. Step 2: Convert to fraction form
    5,392.52/8,088.79 = 3,420.12/x
  3. Step 3: Cross multiply
    5,392.52x = 8,088.79 × 3,420.12
  4. Step 4: Simplify right side
    5,392.52x = 27,664,623.90
  5. Step 5: Solve for x
    x = 27,664,623.90/5,392.52
  6. Step 6: Final answer
    x = 5,130.18

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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.