Home / 3,111,911.20-4,290,278.16-2,334,236.32

Finding the Fourth Proportional to 3,111,911.20, 4,290,278.16 and 2,334,236.32

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Solution

The fourth proportional to 3,111,911.20, 4,290,278.16 and 2,334,236.32 is: 3,218,126.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111,911.20 : 4,290,278.16 = 2,334,236.32 : x
  2. Step 2: Convert to fraction form
    3,111,911.20/4,290,278.16 = 2,334,236.32/x
  3. Step 3: Cross multiply
    3,111,911.20x = 4,290,278.16 × 2,334,236.32
  4. Step 4: Simplify right side
    3,111,911.20x = 10,014,523,103,974.77
  5. Step 5: Solve for x
    x = 10,014,523,103,974.77/3,111,911.20
  6. Step 6: Final answer
    x = 3,218,126.24

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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.