Home / 5,782.15-8,670.66-2,661.40

Finding the Fourth Proportional to 5,782.15, 8,670.66 and 2,661.40

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Solution

The fourth proportional to 5,782.15, 8,670.66 and 2,661.40 is: 3,990.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,782.15 : 8,670.66 = 2,661.40 : x
  2. Step 2: Convert to fraction form
    5,782.15/8,670.66 = 2,661.40/x
  3. Step 3: Cross multiply
    5,782.15x = 8,670.66 × 2,661.40
  4. Step 4: Simplify right side
    5,782.15x = 23,076,094.52
  5. Step 5: Solve for x
    x = 23,076,094.52/5,782.15
  6. Step 6: Final answer
    x = 3,990.92

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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.