Home / 3,419.02-5,129.49-1,110.70

Finding the Fourth Proportional to 3,419.02, 5,129.49 and 1,110.70

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Solution

The fourth proportional to 3,419.02, 5,129.49 and 1,110.70 is: 1,666.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.02 : 5,129.49 = 1,110.70 : x
  2. Step 2: Convert to fraction form
    3,419.02/5,129.49 = 1,110.70/x
  3. Step 3: Cross multiply
    3,419.02x = 5,129.49 × 1,110.70
  4. Step 4: Simplify right side
    3,419.02x = 5,697,324.54
  5. Step 5: Solve for x
    x = 5,697,324.54/3,419.02
  6. Step 6: Final answer
    x = 1,666.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.