Home / 4,687.76-7,041.36-3,720.56

Finding the Fourth Proportional to 4,687.76, 7,041.36 and 3,720.56

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Solution

The fourth proportional to 4,687.76, 7,041.36 and 3,720.56 is: 5,588.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,687.76 : 7,041.36 = 3,720.56 : x
  2. Step 2: Convert to fraction form
    4,687.76/7,041.36 = 3,720.56/x
  3. Step 3: Cross multiply
    4,687.76x = 7,041.36 × 3,720.56
  4. Step 4: Simplify right side
    4,687.76x = 26,197,802.36
  5. Step 5: Solve for x
    x = 26,197,802.36/4,687.76
  6. Step 6: Final answer
    x = 5,588.55

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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.