Home / 1,688.15-2,532.33-1,071

Finding the Fourth Proportional to 1,688.15, 2,532.33 and 1,071

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Solution

The fourth proportional to 1,688.15, 2,532.33 and 1,071 is: 1,606.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,688.15 : 2,532.33 = 1,071 : x
  2. Step 2: Convert to fraction form
    1,688.15/2,532.33 = 1,071/x
  3. Step 3: Cross multiply
    1,688.15x = 2,532.33 × 1,071
  4. Step 4: Simplify right side
    1,688.15x = 2,712,125.43
  5. Step 5: Solve for x
    x = 2,712,125.43/1,688.15
  6. Step 6: Final answer
    x = 1,606.56

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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.