Home / 4,406.95-6,610.39-1,120

Finding the Fourth Proportional to 4,406.95, 6,610.39 and 1,120

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Solution

The fourth proportional to 4,406.95, 6,610.39 and 1,120 is: 1,679.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,406.95 : 6,610.39 = 1,120 : x
  2. Step 2: Convert to fraction form
    4,406.95/6,610.39 = 1,120/x
  3. Step 3: Cross multiply
    4,406.95x = 6,610.39 × 1,120
  4. Step 4: Simplify right side
    4,406.95x = 7,403,636.80
  5. Step 5: Solve for x
    x = 7,403,636.80/4,406.95
  6. Step 6: Final answer
    x = 1,679.99

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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.