Home / 7,946.90-11,915.71-2,398.58

Finding the Fourth Proportional to 7,946.90, 11,915.71 and 2,398.58

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Solution

The fourth proportional to 7,946.90, 11,915.71 and 2,398.58 is: 3,596.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,946.90 : 11,915.71 = 2,398.58 : x
  2. Step 2: Convert to fraction form
    7,946.90/11,915.71 = 2,398.58/x
  3. Step 3: Cross multiply
    7,946.90x = 11,915.71 × 2,398.58
  4. Step 4: Simplify right side
    7,946.90x = 28,580,783.69
  5. Step 5: Solve for x
    x = 28,580,783.69/7,946.90
  6. Step 6: Final answer
    x = 3,596.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.