Home / 2,828.52-4,219.17-2,478.60

Finding the Fourth Proportional to 2,828.52, 4,219.17 and 2,478.60

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Solution

The fourth proportional to 2,828.52, 4,219.17 and 2,478.60 is: 3,697.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,828.52 : 4,219.17 = 2,478.60 : x
  2. Step 2: Convert to fraction form
    2,828.52/4,219.17 = 2,478.60/x
  3. Step 3: Cross multiply
    2,828.52x = 4,219.17 × 2,478.60
  4. Step 4: Simplify right side
    2,828.52x = 10,457,634.76
  5. Step 5: Solve for x
    x = 10,457,634.76/2,828.52
  6. Step 6: Final answer
    x = 3,697.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.