Home / 2,347.12-3,238.98-1,299.19

Finding the Fourth Proportional to 2,347.12, 3,238.98 and 1,299.19

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Solution

The fourth proportional to 2,347.12, 3,238.98 and 1,299.19 is: 1,792.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,347.12 : 3,238.98 = 1,299.19 : x
  2. Step 2: Convert to fraction form
    2,347.12/3,238.98 = 1,299.19/x
  3. Step 3: Cross multiply
    2,347.12x = 3,238.98 × 1,299.19
  4. Step 4: Simplify right side
    2,347.12x = 4,208,050.43
  5. Step 5: Solve for x
    x = 4,208,050.43/2,347.12
  6. Step 6: Final answer
    x = 1,792.86

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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.