Home / 7,820.55-11,730.29-3,437.91

Finding the Fourth Proportional to 7,820.55, 11,730.29 and 3,437.91

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Solution

The fourth proportional to 7,820.55, 11,730.29 and 3,437.91 is: 5,156.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,820.55 : 11,730.29 = 3,437.91 : x
  2. Step 2: Convert to fraction form
    7,820.55/11,730.29 = 3,437.91/x
  3. Step 3: Cross multiply
    7,820.55x = 11,730.29 × 3,437.91
  4. Step 4: Simplify right side
    7,820.55x = 40,327,664.10
  5. Step 5: Solve for x
    x = 40,327,664.10/7,820.55
  6. Step 6: Final answer
    x = 5,156.63

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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.