Home / 3,086.16-4,259.00-1,688.91

Finding the Fourth Proportional to 3,086.16, 4,259.00 and 1,688.91

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Solution

The fourth proportional to 3,086.16, 4,259.00 and 1,688.91 is: 2,330.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,086.16 : 4,259.00 = 1,688.91 : x
  2. Step 2: Convert to fraction form
    3,086.16/4,259.00 = 1,688.91/x
  3. Step 3: Cross multiply
    3,086.16x = 4,259.00 × 1,688.91
  4. Step 4: Simplify right side
    3,086.16x = 7,193,055.94
  5. Step 5: Solve for x
    x = 7,193,055.94/3,086.16
  6. Step 6: Final answer
    x = 2,330.75

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.