Home / 2,807.13-4,205.21-1,708.77

Finding the Fourth Proportional to 2,807.13, 4,205.21 and 1,708.77

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Solution

The fourth proportional to 2,807.13, 4,205.21 and 1,708.77 is: 2,559.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,807.13 : 4,205.21 = 1,708.77 : x
  2. Step 2: Convert to fraction form
    2,807.13/4,205.21 = 1,708.77/x
  3. Step 3: Cross multiply
    2,807.13x = 4,205.21 × 1,708.77
  4. Step 4: Simplify right side
    2,807.13x = 7,185,728.15
  5. Step 5: Solve for x
    x = 7,185,728.15/2,807.13
  6. Step 6: Final answer
    x = 2,559.81

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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.