Home / 3,551.02-4,900.20-1,979.08

Finding the Fourth Proportional to 3,551.02, 4,900.20 and 1,979.08

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Solution

The fourth proportional to 3,551.02, 4,900.20 and 1,979.08 is: 2,731.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,551.02 : 4,900.20 = 1,979.08 : x
  2. Step 2: Convert to fraction form
    3,551.02/4,900.20 = 1,979.08/x
  3. Step 3: Cross multiply
    3,551.02x = 4,900.20 × 1,979.08
  4. Step 4: Simplify right side
    3,551.02x = 9,697,887.82
  5. Step 5: Solve for x
    x = 9,697,887.82/3,551.02
  6. Step 6: Final answer
    x = 2,731.01

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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.