Home / 4,913.16-6,780.24-2,788.54

Finding the Fourth Proportional to 4,913.16, 6,780.24 and 2,788.54

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Solution

The fourth proportional to 4,913.16, 6,780.24 and 2,788.54 is: 3,848.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,913.16 : 6,780.24 = 2,788.54 : x
  2. Step 2: Convert to fraction form
    4,913.16/6,780.24 = 2,788.54/x
  3. Step 3: Cross multiply
    4,913.16x = 6,780.24 × 2,788.54
  4. Step 4: Simplify right side
    4,913.16x = 18,906,970.45
  5. Step 5: Solve for x
    x = 18,906,970.45/4,913.16
  6. Step 6: Final answer
    x = 3,848.23

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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.