Home / 3,723.93-5,139.05-2,153.07

Finding the Fourth Proportional to 3,723.93, 5,139.05 and 2,153.07

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Solution

The fourth proportional to 3,723.93, 5,139.05 and 2,153.07 is: 2,971.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,723.93 : 5,139.05 = 2,153.07 : x
  2. Step 2: Convert to fraction form
    3,723.93/5,139.05 = 2,153.07/x
  3. Step 3: Cross multiply
    3,723.93x = 5,139.05 × 2,153.07
  4. Step 4: Simplify right side
    3,723.93x = 11,064,723.62
  5. Step 5: Solve for x
    x = 11,064,723.62/3,723.93
  6. Step 6: Final answer
    x = 2,971.25

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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.