Home / 3,551.04-4,900.50-1,979.01

Finding the Fourth Proportional to 3,551.04, 4,900.50 and 1,979.01

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Solution

The fourth proportional to 3,551.04, 4,900.50 and 1,979.01 is: 2,731.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,551.04 : 4,900.50 = 1,979.01 : x
  2. Step 2: Convert to fraction form
    3,551.04/4,900.50 = 1,979.01/x
  3. Step 3: Cross multiply
    3,551.04x = 4,900.50 × 1,979.01
  4. Step 4: Simplify right side
    3,551.04x = 9,698,138.51
  5. Step 5: Solve for x
    x = 9,698,138.51/3,551.04
  6. Step 6: Final answer
    x = 2,731.07

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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.