Home / 3,565.78-4,915.02-2,818.42

Finding the Fourth Proportional to 3,565.78, 4,915.02 and 2,818.42

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Solution

The fourth proportional to 3,565.78, 4,915.02 and 2,818.42 is: 3,884.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,565.78 : 4,915.02 = 2,818.42 : x
  2. Step 2: Convert to fraction form
    3,565.78/4,915.02 = 2,818.42/x
  3. Step 3: Cross multiply
    3,565.78x = 4,915.02 × 2,818.42
  4. Step 4: Simplify right side
    3,565.78x = 13,852,590.67
  5. Step 5: Solve for x
    x = 13,852,590.67/3,565.78
  6. Step 6: Final answer
    x = 3,884.87

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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.