Home / 1,741.30-2,607.90-1,328.20

Finding the Fourth Proportional to 1,741.30, 2,607.90 and 1,328.20

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Solution

The fourth proportional to 1,741.30, 2,607.90 and 1,328.20 is: 1,989.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,741.30 : 2,607.90 = 1,328.20 : x
  2. Step 2: Convert to fraction form
    1,741.30/2,607.90 = 1,328.20/x
  3. Step 3: Cross multiply
    1,741.30x = 2,607.90 × 1,328.20
  4. Step 4: Simplify right side
    1,741.30x = 3,463,812.78
  5. Step 5: Solve for x
    x = 3,463,812.78/1,741.30
  6. Step 6: Final answer
    x = 1,989.21

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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.