Home / 6,261.19-8,640.36-3,428.53

Finding the Fourth Proportional to 6,261.19, 8,640.36 and 3,428.53

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Solution

The fourth proportional to 6,261.19, 8,640.36 and 3,428.53 is: 4,731.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,261.19 : 8,640.36 = 3,428.53 : x
  2. Step 2: Convert to fraction form
    6,261.19/8,640.36 = 3,428.53/x
  3. Step 3: Cross multiply
    6,261.19x = 8,640.36 × 3,428.53
  4. Step 4: Simplify right side
    6,261.19x = 29,623,711.87
  5. Step 5: Solve for x
    x = 29,623,711.87/6,261.19
  6. Step 6: Final answer
    x = 4,731.32

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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.