Home / 2,347.72-3,239.85-1,285.48

Finding the Fourth Proportional to 2,347.72, 3,239.85 and 1,285.48

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Solution

The fourth proportional to 2,347.72, 3,239.85 and 1,285.48 is: 1,773.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,347.72 : 3,239.85 = 1,285.48 : x
  2. Step 2: Convert to fraction form
    2,347.72/3,239.85 = 1,285.48/x
  3. Step 3: Cross multiply
    2,347.72x = 3,239.85 × 1,285.48
  4. Step 4: Simplify right side
    2,347.72x = 4,164,762.38
  5. Step 5: Solve for x
    x = 4,164,762.38/2,347.72
  6. Step 6: Final answer
    x = 1,773.96

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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.