Home / 3,258.24-4,886.40-949.12

Finding the Fourth Proportional to 3,258.24, 4,886.40 and 949.12

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Solution

The fourth proportional to 3,258.24, 4,886.40 and 949.12 is: 1,423.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,258.24 : 4,886.40 = 949.12 : x
  2. Step 2: Convert to fraction form
    3,258.24/4,886.40 = 949.12/x
  3. Step 3: Cross multiply
    3,258.24x = 4,886.40 × 949.12
  4. Step 4: Simplify right side
    3,258.24x = 4,637,779.97
  5. Step 5: Solve for x
    x = 4,637,779.97/3,258.24
  6. Step 6: Final answer
    x = 1,423.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.