Home / 2,385.24-3,287.14-1,720.93

Finding the Fourth Proportional to 2,385.24, 3,287.14 and 1,720.93

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Solution

The fourth proportional to 2,385.24, 3,287.14 and 1,720.93 is: 2,371.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,385.24 : 3,287.14 = 1,720.93 : x
  2. Step 2: Convert to fraction form
    2,385.24/3,287.14 = 1,720.93/x
  3. Step 3: Cross multiply
    2,385.24x = 3,287.14 × 1,720.93
  4. Step 4: Simplify right side
    2,385.24x = 5,656,937.84
  5. Step 5: Solve for x
    x = 5,656,937.84/2,385.24
  6. Step 6: Final answer
    x = 2,371.64

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1.5x scale

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.