Home / 3,487.58-4,812.73-1,915.66

Finding the Fourth Proportional to 3,487.58, 4,812.73 and 1,915.66

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Solution

The fourth proportional to 3,487.58, 4,812.73 and 1,915.66 is: 2,643.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.58 : 4,812.73 = 1,915.66 : x
  2. Step 2: Convert to fraction form
    3,487.58/4,812.73 = 1,915.66/x
  3. Step 3: Cross multiply
    3,487.58x = 4,812.73 × 1,915.66
  4. Step 4: Simplify right side
    3,487.58x = 9,219,554.35
  5. Step 5: Solve for x
    x = 9,219,554.35/3,487.58
  6. Step 6: Final answer
    x = 2,643.54

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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.