Home / 6,461.40-9,675.90-4,258.20

Finding the Fourth Proportional to 6,461.40, 9,675.90 and 4,258.20

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Solution

The fourth proportional to 6,461.40, 9,675.90 and 4,258.20 is: 6,376.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,461.40 : 9,675.90 = 4,258.20 : x
  2. Step 2: Convert to fraction form
    6,461.40/9,675.90 = 4,258.20/x
  3. Step 3: Cross multiply
    6,461.40x = 9,675.90 × 4,258.20
  4. Step 4: Simplify right side
    6,461.40x = 41,201,917.38
  5. Step 5: Solve for x
    x = 41,201,917.38/6,461.40
  6. Step 6: Final answer
    x = 6,376.62

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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.