Home / 3,519.86-4,857.32-1,947.92

Finding the Fourth Proportional to 3,519.86, 4,857.32 and 1,947.92

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Solution

The fourth proportional to 3,519.86, 4,857.32 and 1,947.92 is: 2,688.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,519.86 : 4,857.32 = 1,947.92 : x
  2. Step 2: Convert to fraction form
    3,519.86/4,857.32 = 1,947.92/x
  3. Step 3: Cross multiply
    3,519.86x = 4,857.32 × 1,947.92
  4. Step 4: Simplify right side
    3,519.86x = 9,461,670.77
  5. Step 5: Solve for x
    x = 9,461,670.77/3,519.86
  6. Step 6: Final answer
    x = 2,688.08

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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.