Home / 3,128.33-4,317.10-1,711.99

Finding the Fourth Proportional to 3,128.33, 4,317.10 and 1,711.99

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Solution

The fourth proportional to 3,128.33, 4,317.10 and 1,711.99 is: 2,362.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.33 : 4,317.10 = 1,711.99 : x
  2. Step 2: Convert to fraction form
    3,128.33/4,317.10 = 1,711.99/x
  3. Step 3: Cross multiply
    3,128.33x = 4,317.10 × 1,711.99
  4. Step 4: Simplify right side
    3,128.33x = 7,390,832.03
  5. Step 5: Solve for x
    x = 7,390,832.03/3,128.33
  6. Step 6: Final answer
    x = 2,362.55

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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.