Home / 7,320.36-10,977.12-3,160.20

Finding the Fourth Proportional to 7,320.36, 10,977.12 and 3,160.20

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Solution

The fourth proportional to 7,320.36, 10,977.12 and 3,160.20 is: 4,738.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,320.36 : 10,977.12 = 3,160.20 : x
  2. Step 2: Convert to fraction form
    7,320.36/10,977.12 = 3,160.20/x
  3. Step 3: Cross multiply
    7,320.36x = 10,977.12 × 3,160.20
  4. Step 4: Simplify right side
    7,320.36x = 34,689,894.62
  5. Step 5: Solve for x
    x = 34,689,894.62/7,320.36
  6. Step 6: Final answer
    x = 4,738.82

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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.