Home / 5,112.13-7,681.17-4,768.15

Finding the Fourth Proportional to 5,112.13, 7,681.17 and 4,768.15

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Solution

The fourth proportional to 5,112.13, 7,681.17 and 4,768.15 is: 7,164.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,112.13 : 7,681.17 = 4,768.15 : x
  2. Step 2: Convert to fraction form
    5,112.13/7,681.17 = 4,768.15/x
  3. Step 3: Cross multiply
    5,112.13x = 7,681.17 × 4,768.15
  4. Step 4: Simplify right side
    5,112.13x = 36,624,970.74
  5. Step 5: Solve for x
    x = 36,624,970.74/5,112.13
  6. Step 6: Final answer
    x = 7,164.33

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1.5x scale

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.