Home / 5,420.07-8,129.91-2,298.06

Finding the Fourth Proportional to 5,420.07, 8,129.91 and 2,298.06

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Solution

The fourth proportional to 5,420.07, 8,129.91 and 2,298.06 is: 3,447.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,420.07 : 8,129.91 = 2,298.06 : x
  2. Step 2: Convert to fraction form
    5,420.07/8,129.91 = 2,298.06/x
  3. Step 3: Cross multiply
    5,420.07x = 8,129.91 × 2,298.06
  4. Step 4: Simplify right side
    5,420.07x = 18,683,020.97
  5. Step 5: Solve for x
    x = 18,683,020.97/5,420.07
  6. Step 6: Final answer
    x = 3,447.01

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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.