Home / 7,920.36-11,880.41-2,373.62

Finding the Fourth Proportional to 7,920.36, 11,880.41 and 2,373.62

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Solution

The fourth proportional to 7,920.36, 11,880.41 and 2,373.62 is: 3,560.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,920.36 : 11,880.41 = 2,373.62 : x
  2. Step 2: Convert to fraction form
    7,920.36/11,880.41 = 2,373.62/x
  3. Step 3: Cross multiply
    7,920.36x = 11,880.41 × 2,373.62
  4. Step 4: Simplify right side
    7,920.36x = 28,199,507.51
  5. Step 5: Solve for x
    x = 28,199,507.51/7,920.36
  6. Step 6: Final answer
    x = 3,560.38

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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.