Home / 2,915.53-4,370.09-1,818.38

Finding the Fourth Proportional to 2,915.53, 4,370.09 and 1,818.38

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Solution

The fourth proportional to 2,915.53, 4,370.09 and 1,818.38 is: 2,725.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.53 : 4,370.09 = 1,818.38 : x
  2. Step 2: Convert to fraction form
    2,915.53/4,370.09 = 1,818.38/x
  3. Step 3: Cross multiply
    2,915.53x = 4,370.09 × 1,818.38
  4. Step 4: Simplify right side
    2,915.53x = 7,946,486.09
  5. Step 5: Solve for x
    x = 7,946,486.09/2,915.53
  6. Step 6: Final answer
    x = 2,725.57

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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.