Home / 5,390.08-8,079.64-4,088.81

Finding the Fourth Proportional to 5,390.08, 8,079.64 and 4,088.81

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Solution

The fourth proportional to 5,390.08, 8,079.64 and 4,088.81 is: 6,129.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390.08 : 8,079.64 = 4,088.81 : x
  2. Step 2: Convert to fraction form
    5,390.08/8,079.64 = 4,088.81/x
  3. Step 3: Cross multiply
    5,390.08x = 8,079.64 × 4,088.81
  4. Step 4: Simplify right side
    5,390.08x = 33,036,122.81
  5. Step 5: Solve for x
    x = 33,036,122.81/5,390.08
  6. Step 6: Final answer
    x = 6,129.06

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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.