Home / 4,011.31-6,015.88-1,089.78

Finding the Fourth Proportional to 4,011.31, 6,015.88 and 1,089.78

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Solution

The fourth proportional to 4,011.31, 6,015.88 and 1,089.78 is: 1,634.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,011.31 : 6,015.88 = 1,089.78 : x
  2. Step 2: Convert to fraction form
    4,011.31/6,015.88 = 1,089.78/x
  3. Step 3: Cross multiply
    4,011.31x = 6,015.88 × 1,089.78
  4. Step 4: Simplify right side
    4,011.31x = 6,555,985.71
  5. Step 5: Solve for x
    x = 6,555,985.71/4,011.31
  6. Step 6: Final answer
    x = 1,634.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.