Home / 1,731.21-2,606.16-1,580.55

Finding the Fourth Proportional to 1,731.21, 2,606.16 and 1,580.55

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Solution

The fourth proportional to 1,731.21, 2,606.16 and 1,580.55 is: 2,379.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,731.21 : 2,606.16 = 1,580.55 : x
  2. Step 2: Convert to fraction form
    1,731.21/2,606.16 = 1,580.55/x
  3. Step 3: Cross multiply
    1,731.21x = 2,606.16 × 1,580.55
  4. Step 4: Simplify right side
    1,731.21x = 4,119,153.16
  5. Step 5: Solve for x
    x = 4,119,153.16/1,731.21
  6. Step 6: Final answer
    x = 2,379.36

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.