Home / 4,815.95-6,625.19-3,929.81

Finding the Fourth Proportional to 4,815.95, 6,625.19 and 3,929.81

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Solution

The fourth proportional to 4,815.95, 6,625.19 and 3,929.81 is: 5,406.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815.95 : 6,625.19 = 3,929.81 : x
  2. Step 2: Convert to fraction form
    4,815.95/6,625.19 = 3,929.81/x
  3. Step 3: Cross multiply
    4,815.95x = 6,625.19 × 3,929.81
  4. Step 4: Simplify right side
    4,815.95x = 26,035,714.61
  5. Step 5: Solve for x
    x = 26,035,714.61/4,815.95
  6. Step 6: Final answer
    x = 5,406.15

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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.