Home / 2,345.90-3,237.30-1,351.18

Finding the Fourth Proportional to 2,345.90, 3,237.30 and 1,351.18

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Solution

The fourth proportional to 2,345.90, 3,237.30 and 1,351.18 is: 1,864.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,345.90 : 3,237.30 = 1,351.18 : x
  2. Step 2: Convert to fraction form
    2,345.90/3,237.30 = 1,351.18/x
  3. Step 3: Cross multiply
    2,345.90x = 3,237.30 × 1,351.18
  4. Step 4: Simplify right side
    2,345.90x = 4,374,179.06
  5. Step 5: Solve for x
    x = 4,374,179.06/2,345.90
  6. Step 6: Final answer
    x = 1,864.61

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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.