Home / 3,346.40-4,620.14-2,151.92

Finding the Fourth Proportional to 3,346.40, 4,620.14 and 2,151.92

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Solution

The fourth proportional to 3,346.40, 4,620.14 and 2,151.92 is: 2,971.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,346.40 : 4,620.14 = 2,151.92 : x
  2. Step 2: Convert to fraction form
    3,346.40/4,620.14 = 2,151.92/x
  3. Step 3: Cross multiply
    3,346.40x = 4,620.14 × 2,151.92
  4. Step 4: Simplify right side
    3,346.40x = 9,942,137.81
  5. Step 5: Solve for x
    x = 9,942,137.81/3,346.40
  6. Step 6: Final answer
    x = 2,971.00

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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.