Home / 6,880.10-10,320.12-1,949.72

Finding the Fourth Proportional to 6,880.10, 10,320.12 and 1,949.72

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Solution

The fourth proportional to 6,880.10, 10,320.12 and 1,949.72 is: 2,924.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,880.10 : 10,320.12 = 1,949.72 : x
  2. Step 2: Convert to fraction form
    6,880.10/10,320.12 = 1,949.72/x
  3. Step 3: Cross multiply
    6,880.10x = 10,320.12 × 1,949.72
  4. Step 4: Simplify right side
    6,880.10x = 20,121,292.77
  5. Step 5: Solve for x
    x = 20,121,292.77/6,880.10
  6. Step 6: Final answer
    x = 2,924.57

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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.