Home / 1,617.10-2,421.60-1,293.10

Finding the Fourth Proportional to 1,617.10, 2,421.60 and 1,293.10

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Solution

The fourth proportional to 1,617.10, 2,421.60 and 1,293.10 is: 1,936.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,617.10 : 2,421.60 = 1,293.10 : x
  2. Step 2: Convert to fraction form
    1,617.10/2,421.60 = 1,293.10/x
  3. Step 3: Cross multiply
    1,617.10x = 2,421.60 × 1,293.10
  4. Step 4: Simplify right side
    1,617.10x = 3,131,370.96
  5. Step 5: Solve for x
    x = 3,131,370.96/1,617.10
  6. Step 6: Final answer
    x = 1,936.41

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1.5x scale

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.