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Finding the Fourth Proportional to 6,285.47, 8,670.24 and 3,923.51

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Solution

The fourth proportional to 6,285.47, 8,670.24 and 3,923.51 is: 5,412.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,285.47 : 8,670.24 = 3,923.51 : x
  2. Step 2: Convert to fraction form
    6,285.47/8,670.24 = 3,923.51/x
  3. Step 3: Cross multiply
    6,285.47x = 8,670.24 × 3,923.51
  4. Step 4: Simplify right side
    6,285.47x = 34,017,729.99
  5. Step 5: Solve for x
    x = 34,017,729.99/6,285.47
  6. Step 6: Final answer
    x = 5,412.13

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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.