Home / 6,880.20-10,320.30-4,288.20

Finding the Fourth Proportional to 6,880.20, 10,320.30 and 4,288.20

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Solution

The fourth proportional to 6,880.20, 10,320.30 and 4,288.20 is: 6,432.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,880.20 : 10,320.30 = 4,288.20 : x
  2. Step 2: Convert to fraction form
    6,880.20/10,320.30 = 4,288.20/x
  3. Step 3: Cross multiply
    6,880.20x = 10,320.30 × 4,288.20
  4. Step 4: Simplify right side
    6,880.20x = 44,255,510.46
  5. Step 5: Solve for x
    x = 44,255,510.46/6,880.20
  6. Step 6: Final answer
    x = 6,432.30

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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.