Home / 1,666.18-2,501.43-1,091.62

Finding the Fourth Proportional to 1,666.18, 2,501.43 and 1,091.62

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Solution

The fourth proportional to 1,666.18, 2,501.43 and 1,091.62 is: 1,638.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,666.18 : 2,501.43 = 1,091.62 : x
  2. Step 2: Convert to fraction form
    1,666.18/2,501.43 = 1,091.62/x
  3. Step 3: Cross multiply
    1,666.18x = 2,501.43 × 1,091.62
  4. Step 4: Simplify right side
    1,666.18x = 2,730,611.02
  5. Step 5: Solve for x
    x = 2,730,611.02/1,666.18
  6. Step 6: Final answer
    x = 1,638.85

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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.