Home / 6,138.24-8,470.69-3,485.63

Finding the Fourth Proportional to 6,138.24, 8,470.69 and 3,485.63

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Solution

The fourth proportional to 6,138.24, 8,470.69 and 3,485.63 is: 4,810.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,138.24 : 8,470.69 = 3,485.63 : x
  2. Step 2: Convert to fraction form
    6,138.24/8,470.69 = 3,485.63/x
  3. Step 3: Cross multiply
    6,138.24x = 8,470.69 × 3,485.63
  4. Step 4: Simplify right side
    6,138.24x = 29,525,640.12
  5. Step 5: Solve for x
    x = 29,525,640.12/6,138.24
  6. Step 6: Final answer
    x = 4,810.11

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Double scale
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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.