Home / 3,502.46-4,835.76-2,178.20

Finding the Fourth Proportional to 3,502.46, 4,835.76 and 2,178.20

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Solution

The fourth proportional to 3,502.46, 4,835.76 and 2,178.20 is: 3,007.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,502.46 : 4,835.76 = 2,178.20 : x
  2. Step 2: Convert to fraction form
    3,502.46/4,835.76 = 2,178.20/x
  3. Step 3: Cross multiply
    3,502.46x = 4,835.76 × 2,178.20
  4. Step 4: Simplify right side
    3,502.46x = 10,533,252.43
  5. Step 5: Solve for x
    x = 10,533,252.43/3,502.46
  6. Step 6: Final answer
    x = 3,007.39

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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.