Home / 2,226.68-3,070.02-1,428.59

Finding the Fourth Proportional to 2,226.68, 3,070.02 and 1,428.59

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Solution

The fourth proportional to 2,226.68, 3,070.02 and 1,428.59 is: 1,969.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,226.68 : 3,070.02 = 1,428.59 : x
  2. Step 2: Convert to fraction form
    2,226.68/3,070.02 = 1,428.59/x
  3. Step 3: Cross multiply
    2,226.68x = 3,070.02 × 1,428.59
  4. Step 4: Simplify right side
    2,226.68x = 4,385,799.87
  5. Step 5: Solve for x
    x = 4,385,799.87/2,226.68
  6. Step 6: Final answer
    x = 1,969.66

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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.