Home / 3,505.49-4,837.08-2,178.71

Finding the Fourth Proportional to 3,505.49, 4,837.08 and 2,178.71

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Solution

The fourth proportional to 3,505.49, 4,837.08 and 2,178.71 is: 3,006.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,505.49 : 4,837.08 = 2,178.71 : x
  2. Step 2: Convert to fraction form
    3,505.49/4,837.08 = 2,178.71/x
  3. Step 3: Cross multiply
    3,505.49x = 4,837.08 × 2,178.71
  4. Step 4: Simplify right side
    3,505.49x = 10,538,594.57
  5. Step 5: Solve for x
    x = 10,538,594.57/3,505.49
  6. Step 6: Final answer
    x = 3,006.31

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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.