Home / 5,665.15-7,817.54-3,147.06

Finding the Fourth Proportional to 5,665.15, 7,817.54 and 3,147.06

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Solution

The fourth proportional to 5,665.15, 7,817.54 and 3,147.06 is: 4,342.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,665.15 : 7,817.54 = 3,147.06 : x
  2. Step 2: Convert to fraction form
    5,665.15/7,817.54 = 3,147.06/x
  3. Step 3: Cross multiply
    5,665.15x = 7,817.54 × 3,147.06
  4. Step 4: Simplify right side
    5,665.15x = 24,602,267.43
  5. Step 5: Solve for x
    x = 24,602,267.43/5,665.15
  6. Step 6: Final answer
    x = 4,342.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.