Home / 3,991,904.92-5,508,824.32-2,156,362.76

Finding the Fourth Proportional to 3,991,904.92, 5,508,824.32 and 2,156,362.76

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Solution

The fourth proportional to 3,991,904.92, 5,508,824.32 and 2,156,362.76 is: 2,975,778.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991,904.92 : 5,508,824.32 = 2,156,362.76 : x
  2. Step 2: Convert to fraction form
    3,991,904.92/5,508,824.32 = 2,156,362.76/x
  3. Step 3: Cross multiply
    3,991,904.92x = 5,508,824.32 × 2,156,362.76
  4. Step 4: Simplify right side
    3,991,904.92x = 11,879,023,615,030.32
  5. Step 5: Solve for x
    x = 11,879,023,615,030.32/3,991,904.92
  6. Step 6: Final answer
    x = 2,975,778.19

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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.