Home / 1,720.28-2,576.50-1,095.53

Finding the Fourth Proportional to 1,720.28, 2,576.50 and 1,095.53

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Solution

The fourth proportional to 1,720.28, 2,576.50 and 1,095.53 is: 1,640.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,720.28 : 2,576.50 = 1,095.53 : x
  2. Step 2: Convert to fraction form
    1,720.28/2,576.50 = 1,095.53/x
  3. Step 3: Cross multiply
    1,720.28x = 2,576.50 × 1,095.53
  4. Step 4: Simplify right side
    1,720.28x = 2,822,617.42
  5. Step 5: Solve for x
    x = 2,822,617.42/1,720.28
  6. Step 6: Final answer
    x = 1,640.79

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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.