Home / 6,815.28-10,225.68-2,655.60

Finding the Fourth Proportional to 6,815.28, 10,225.68 and 2,655.60

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Solution

The fourth proportional to 6,815.28, 10,225.68 and 2,655.60 is: 3,984.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,815.28 : 10,225.68 = 2,655.60 : x
  2. Step 2: Convert to fraction form
    6,815.28/10,225.68 = 2,655.60/x
  3. Step 3: Cross multiply
    6,815.28x = 10,225.68 × 2,655.60
  4. Step 4: Simplify right side
    6,815.28x = 27,155,315.81
  5. Step 5: Solve for x
    x = 27,155,315.81/6,815.28
  6. Step 6: Final answer
    x = 3,984.48

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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.