Home / 2,347.81-3,239.94-1,285.56

Finding the Fourth Proportional to 2,347.81, 3,239.94 and 1,285.56

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Solution

The fourth proportional to 2,347.81, 3,239.94 and 1,285.56 is: 1,774.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,347.81 : 3,239.94 = 1,285.56 : x
  2. Step 2: Convert to fraction form
    2,347.81/3,239.94 = 1,285.56/x
  3. Step 3: Cross multiply
    2,347.81x = 3,239.94 × 1,285.56
  4. Step 4: Simplify right side
    2,347.81x = 4,165,142.09
  5. Step 5: Solve for x
    x = 4,165,142.09/2,347.81
  6. Step 6: Final answer
    x = 1,774.06

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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.