Home / 3,915.81-5,403.65-2,237.49

Finding the Fourth Proportional to 3,915.81, 5,403.65 and 2,237.49

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Solution

The fourth proportional to 3,915.81, 5,403.65 and 2,237.49 is: 3,087.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,915.81 : 5,403.65 = 2,237.49 : x
  2. Step 2: Convert to fraction form
    3,915.81/5,403.65 = 2,237.49/x
  3. Step 3: Cross multiply
    3,915.81x = 5,403.65 × 2,237.49
  4. Step 4: Simplify right side
    3,915.81x = 12,090,601.65
  5. Step 5: Solve for x
    x = 12,090,601.65/3,915.81
  6. Step 6: Final answer
    x = 3,087.64

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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.