Home / 4,727-7,090.80-1,440.34

Finding the Fourth Proportional to 4,727, 7,090.80 and 1,440.34

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Solution

The fourth proportional to 4,727, 7,090.80 and 1,440.34 is: 2,160.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,727 : 7,090.80 = 1,440.34 : x
  2. Step 2: Convert to fraction form
    4,727/7,090.80 = 1,440.34/x
  3. Step 3: Cross multiply
    4,727x = 7,090.80 × 1,440.34
  4. Step 4: Simplify right side
    4,727x = 10,213,162.87
  5. Step 5: Solve for x
    x = 10,213,162.87/4,727
  6. Step 6: Final answer
    x = 2,160.60

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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.