Home / 1,720.46-2,372.49-1,472.60

Finding the Fourth Proportional to 1,720.46, 2,372.49 and 1,472.60

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Solution

The fourth proportional to 1,720.46, 2,372.49 and 1,472.60 is: 2,030.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,720.46 : 2,372.49 = 1,472.60 : x
  2. Step 2: Convert to fraction form
    1,720.46/2,372.49 = 1,472.60/x
  3. Step 3: Cross multiply
    1,720.46x = 2,372.49 × 1,472.60
  4. Step 4: Simplify right side
    1,720.46x = 3,493,728.77
  5. Step 5: Solve for x
    x = 3,493,728.77/1,720.46
  6. Step 6: Final answer
    x = 2,030.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.