Home / 6,971.38-9,621.10-3,828.18

Finding the Fourth Proportional to 6,971.38, 9,621.10 and 3,828.18

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Solution

The fourth proportional to 6,971.38, 9,621.10 and 3,828.18 is: 5,283.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,971.38 : 9,621.10 = 3,828.18 : x
  2. Step 2: Convert to fraction form
    6,971.38/9,621.10 = 3,828.18/x
  3. Step 3: Cross multiply
    6,971.38x = 9,621.10 × 3,828.18
  4. Step 4: Simplify right side
    6,971.38x = 36,831,302.60
  5. Step 5: Solve for x
    x = 36,831,302.60/6,971.38
  6. Step 6: Final answer
    x = 5,283.22

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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.