Home / 2,335.48-3,223.62-1,390.97

Finding the Fourth Proportional to 2,335.48, 3,223.62 and 1,390.97

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Solution

The fourth proportional to 2,335.48, 3,223.62 and 1,390.97 is: 1,919.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,335.48 : 3,223.62 = 1,390.97 : x
  2. Step 2: Convert to fraction form
    2,335.48/3,223.62 = 1,390.97/x
  3. Step 3: Cross multiply
    2,335.48x = 3,223.62 × 1,390.97
  4. Step 4: Simplify right side
    2,335.48x = 4,483,970.68
  5. Step 5: Solve for x
    x = 4,483,970.68/2,335.48
  6. Step 6: Final answer
    x = 1,919.93

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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.