Home / 1,720.38-2,373.18-1,485.30

Finding the Fourth Proportional to 1,720.38, 2,373.18 and 1,485.30

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Solution

The fourth proportional to 1,720.38, 2,373.18 and 1,485.30 is: 2,048.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,720.38 : 2,373.18 = 1,485.30 : x
  2. Step 2: Convert to fraction form
    1,720.38/2,373.18 = 1,485.30/x
  3. Step 3: Cross multiply
    1,720.38x = 2,373.18 × 1,485.30
  4. Step 4: Simplify right side
    1,720.38x = 3,524,884.25
  5. Step 5: Solve for x
    x = 3,524,884.25/1,720.38
  6. Step 6: Final answer
    x = 2,048.90

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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.