Home / 3,428.28-4,731.02-1,856.36

Finding the Fourth Proportional to 3,428.28, 4,731.02 and 1,856.36

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Solution

The fourth proportional to 3,428.28, 4,731.02 and 1,856.36 is: 2,561.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.28 : 4,731.02 = 1,856.36 : x
  2. Step 2: Convert to fraction form
    3,428.28/4,731.02 = 1,856.36/x
  3. Step 3: Cross multiply
    3,428.28x = 4,731.02 × 1,856.36
  4. Step 4: Simplify right side
    3,428.28x = 8,782,476.29
  5. Step 5: Solve for x
    x = 8,782,476.29/3,428.28
  6. Step 6: Final answer
    x = 2,561.77

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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.