Home / 2,127.48-3,188.09-1,071.84

Finding the Fourth Proportional to 2,127.48, 3,188.09 and 1,071.84

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Solution

The fourth proportional to 2,127.48, 3,188.09 and 1,071.84 is: 1,606.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,127.48 : 3,188.09 = 1,071.84 : x
  2. Step 2: Convert to fraction form
    2,127.48/3,188.09 = 1,071.84/x
  3. Step 3: Cross multiply
    2,127.48x = 3,188.09 × 1,071.84
  4. Step 4: Simplify right side
    2,127.48x = 3,417,137.02
  5. Step 5: Solve for x
    x = 3,417,137.02/2,127.48
  6. Step 6: Final answer
    x = 1,606.19

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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.