Home / 4,724.64-6,520.05-2,628.78

Finding the Fourth Proportional to 4,724.64, 6,520.05 and 2,628.78

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Solution

The fourth proportional to 4,724.64, 6,520.05 and 2,628.78 is: 3,627.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,724.64 : 6,520.05 = 2,628.78 : x
  2. Step 2: Convert to fraction form
    4,724.64/6,520.05 = 2,628.78/x
  3. Step 3: Cross multiply
    4,724.64x = 6,520.05 × 2,628.78
  4. Step 4: Simplify right side
    4,724.64x = 17,139,777.04
  5. Step 5: Solve for x
    x = 17,139,777.04/4,724.64
  6. Step 6: Final answer
    x = 3,627.74

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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.