Home / 3,428.01-4,730.67-1,856.12

Finding the Fourth Proportional to 3,428.01, 4,730.67 and 1,856.12

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Solution

The fourth proportional to 3,428.01, 4,730.67 and 1,856.12 is: 2,561.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.01 : 4,730.67 = 1,856.12 : x
  2. Step 2: Convert to fraction form
    3,428.01/4,730.67 = 1,856.12/x
  3. Step 3: Cross multiply
    3,428.01x = 4,730.67 × 1,856.12
  4. Step 4: Simplify right side
    3,428.01x = 8,780,667.55
  5. Step 5: Solve for x
    x = 8,780,667.55/3,428.01
  6. Step 6: Final answer
    x = 2,561.45

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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.