Home / 3,151.07-4,727.63-959.80

Finding the Fourth Proportional to 3,151.07, 4,727.63 and 959.80

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Solution

The fourth proportional to 3,151.07, 4,727.63 and 959.80 is: 1,440.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.07 : 4,727.63 = 959.80 : x
  2. Step 2: Convert to fraction form
    3,151.07/4,727.63 = 959.80/x
  3. Step 3: Cross multiply
    3,151.07x = 4,727.63 × 959.80
  4. Step 4: Simplify right side
    3,151.07x = 4,537,550.84
  5. Step 5: Solve for x
    x = 4,537,550.84/3,151.07
  6. Step 6: Final answer
    x = 1,440.01

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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.