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Finding the Fourth Proportional to 3,129.93, 4,317.93 and 1,803.33

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Solution

The fourth proportional to 3,129.93, 4,317.93 and 1,803.33 is: 2,487.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.93 : 4,317.93 = 1,803.33 : x
  2. Step 2: Convert to fraction form
    3,129.93/4,317.93 = 1,803.33/x
  3. Step 3: Cross multiply
    3,129.93x = 4,317.93 × 1,803.33
  4. Step 4: Simplify right side
    3,129.93x = 7,786,652.71
  5. Step 5: Solve for x
    x = 7,786,652.71/3,129.93
  6. Step 6: Final answer
    x = 2,487.80

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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.