Home / 3,487.74-4,813.14-1,915.98

Finding the Fourth Proportional to 3,487.74, 4,813.14 and 1,915.98

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Solution

The fourth proportional to 3,487.74, 4,813.14 and 1,915.98 is: 2,644.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.74 : 4,813.14 = 1,915.98 : x
  2. Step 2: Convert to fraction form
    3,487.74/4,813.14 = 1,915.98/x
  3. Step 3: Cross multiply
    3,487.74x = 4,813.14 × 1,915.98
  4. Step 4: Simplify right side
    3,487.74x = 9,221,879.98
  5. Step 5: Solve for x
    x = 9,221,879.98/3,487.74
  6. Step 6: Final answer
    x = 2,644.08

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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.