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Finding the Fourth Proportional to 5,365.85, 7,405.02 and 3,127.82

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Solution

The fourth proportional to 5,365.85, 7,405.02 and 3,127.82 is: 4,316.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,365.85 : 7,405.02 = 3,127.82 : x
  2. Step 2: Convert to fraction form
    5,365.85/7,405.02 = 3,127.82/x
  3. Step 3: Cross multiply
    5,365.85x = 7,405.02 × 3,127.82
  4. Step 4: Simplify right side
    5,365.85x = 23,161,532.63
  5. Step 5: Solve for x
    x = 23,161,532.63/5,365.85
  6. Step 6: Final answer
    x = 4,316.47

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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.