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Finding the Fourth Proportional to 6,258.12, 8,638.12 and 3,607.28

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Solution

The fourth proportional to 6,258.12, 8,638.12 and 3,607.28 is: 4,979.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,258.12 : 8,638.12 = 3,607.28 : x
  2. Step 2: Convert to fraction form
    6,258.12/8,638.12 = 3,607.28/x
  3. Step 3: Cross multiply
    6,258.12x = 8,638.12 × 3,607.28
  4. Step 4: Simplify right side
    6,258.12x = 31,160,117.51
  5. Step 5: Solve for x
    x = 31,160,117.51/6,258.12
  6. Step 6: Final answer
    x = 4,979.15

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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.