Home / 3,428.13-4,730.85-1,856.25

Finding the Fourth Proportional to 3,428.13, 4,730.85 and 1,856.25

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Solution

The fourth proportional to 3,428.13, 4,730.85 and 1,856.25 is: 2,561.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.13 : 4,730.85 = 1,856.25 : x
  2. Step 2: Convert to fraction form
    3,428.13/4,730.85 = 1,856.25/x
  3. Step 3: Cross multiply
    3,428.13x = 4,730.85 × 1,856.25
  4. Step 4: Simplify right side
    3,428.13x = 8,781,640.31
  5. Step 5: Solve for x
    x = 8,781,640.31/3,428.13
  6. Step 6: Final answer
    x = 2,561.64

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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.