Home / 1,669.10-2,501.90-628.38

Finding the Fourth Proportional to 1,669.10, 2,501.90 and 628.38

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Solution

The fourth proportional to 1,669.10, 2,501.90 and 628.38 is: 941.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,669.10 : 2,501.90 = 628.38 : x
  2. Step 2: Convert to fraction form
    1,669.10/2,501.90 = 628.38/x
  3. Step 3: Cross multiply
    1,669.10x = 2,501.90 × 628.38
  4. Step 4: Simplify right side
    1,669.10x = 1,572,140.78
  5. Step 5: Solve for x
    x = 1,572,140.78/1,669.10
  6. Step 6: Final answer
    x = 941.91

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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.