Home / 3,551.63-4,901.24-1,979.72

Finding the Fourth Proportional to 3,551.63, 4,901.24 and 1,979.72

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Solution

The fourth proportional to 3,551.63, 4,901.24 and 1,979.72 is: 2,732.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,551.63 : 4,901.24 = 1,979.72 : x
  2. Step 2: Convert to fraction form
    3,551.63/4,901.24 = 1,979.72/x
  3. Step 3: Cross multiply
    3,551.63x = 4,901.24 × 1,979.72
  4. Step 4: Simplify right side
    3,551.63x = 9,703,048.45
  5. Step 5: Solve for x
    x = 9,703,048.45/3,551.63
  6. Step 6: Final answer
    x = 2,732.00

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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.