Home / 5,779.89-8,670.42-1,831.32

Finding the Fourth Proportional to 5,779.89, 8,670.42 and 1,831.32

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Solution

The fourth proportional to 5,779.89, 8,670.42 and 1,831.32 is: 2,747.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,779.89 : 8,670.42 = 1,831.32 : x
  2. Step 2: Convert to fraction form
    5,779.89/8,670.42 = 1,831.32/x
  3. Step 3: Cross multiply
    5,779.89x = 8,670.42 × 1,831.32
  4. Step 4: Simplify right side
    5,779.89x = 15,878,313.55
  5. Step 5: Solve for x
    x = 15,878,313.55/5,779.89
  6. Step 6: Final answer
    x = 2,747.17

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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.