Home / 3,430.28-4,730.50-2,086.11

Finding the Fourth Proportional to 3,430.28, 4,730.50 and 2,086.11

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Solution

The fourth proportional to 3,430.28, 4,730.50 and 2,086.11 is: 2,876.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,430.28 : 4,730.50 = 2,086.11 : x
  2. Step 2: Convert to fraction form
    3,430.28/4,730.50 = 2,086.11/x
  3. Step 3: Cross multiply
    3,430.28x = 4,730.50 × 2,086.11
  4. Step 4: Simplify right side
    3,430.28x = 9,868,343.36
  5. Step 5: Solve for x
    x = 9,868,343.36/3,430.28
  6. Step 6: Final answer
    x = 2,876.84

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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.