Home / 4,815.04-6,644.76-2,719.20

Finding the Fourth Proportional to 4,815.04, 6,644.76 and 2,719.20

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Solution

The fourth proportional to 4,815.04, 6,644.76 and 2,719.20 is: 3,752.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815.04 : 6,644.76 = 2,719.20 : x
  2. Step 2: Convert to fraction form
    4,815.04/6,644.76 = 2,719.20/x
  3. Step 3: Cross multiply
    4,815.04x = 6,644.76 × 2,719.20
  4. Step 4: Simplify right side
    4,815.04x = 18,068,431.39
  5. Step 5: Solve for x
    x = 18,068,431.39/4,815.04
  6. Step 6: Final answer
    x = 3,752.50

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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.