Home / 7,281.20-10,043.16-4,919.60

Finding the Fourth Proportional to 7,281.20, 10,043.16 and 4,919.60

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Solution

The fourth proportional to 7,281.20, 10,043.16 and 4,919.60 is: 6,785.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,281.20 : 10,043.16 = 4,919.60 : x
  2. Step 2: Convert to fraction form
    7,281.20/10,043.16 = 4,919.60/x
  3. Step 3: Cross multiply
    7,281.20x = 10,043.16 × 4,919.60
  4. Step 4: Simplify right side
    7,281.20x = 49,408,329.94
  5. Step 5: Solve for x
    x = 49,408,329.94/7,281.20
  6. Step 6: Final answer
    x = 6,785.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.