Home / 3,428.10-4,730.76-1,856.19

Finding the Fourth Proportional to 3,428.10, 4,730.76 and 1,856.19

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Solution

The fourth proportional to 3,428.10, 4,730.76 and 1,856.19 is: 2,561.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.10 : 4,730.76 = 1,856.19 : x
  2. Step 2: Convert to fraction form
    3,428.10/4,730.76 = 1,856.19/x
  3. Step 3: Cross multiply
    3,428.10x = 4,730.76 × 1,856.19
  4. Step 4: Simplify right side
    3,428.10x = 8,781,189.40
  5. Step 5: Solve for x
    x = 8,781,189.40/3,428.10
  6. Step 6: Final answer
    x = 2,561.53

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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.