Home / 3,098.79-4,280.04-2,258.15

Finding the Fourth Proportional to 3,098.79, 4,280.04 and 2,258.15

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Solution

The fourth proportional to 3,098.79, 4,280.04 and 2,258.15 is: 3,118.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,098.79 : 4,280.04 = 2,258.15 : x
  2. Step 2: Convert to fraction form
    3,098.79/4,280.04 = 2,258.15/x
  3. Step 3: Cross multiply
    3,098.79x = 4,280.04 × 2,258.15
  4. Step 4: Simplify right side
    3,098.79x = 9,664,950.93
  5. Step 5: Solve for x
    x = 9,664,950.93/3,098.79
  6. Step 6: Final answer
    x = 3,118.94

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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.