Home / 4,915.81-6,783.92-3,854.85

Finding the Fourth Proportional to 4,915.81, 6,783.92 and 3,854.85

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Solution

The fourth proportional to 4,915.81, 6,783.92 and 3,854.85 is: 5,319.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,915.81 : 6,783.92 = 3,854.85 : x
  2. Step 2: Convert to fraction form
    4,915.81/6,783.92 = 3,854.85/x
  3. Step 3: Cross multiply
    4,915.81x = 6,783.92 × 3,854.85
  4. Step 4: Simplify right side
    4,915.81x = 26,150,994.01
  5. Step 5: Solve for x
    x = 26,150,994.01/4,915.81
  6. Step 6: Final answer
    x = 5,319.77

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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.