Home / 3,420.29-5,127.33-1,774.91

Finding the Fourth Proportional to 3,420.29, 5,127.33 and 1,774.91

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Solution

The fourth proportional to 3,420.29, 5,127.33 and 1,774.91 is: 2,660.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.29 : 5,127.33 = 1,774.91 : x
  2. Step 2: Convert to fraction form
    3,420.29/5,127.33 = 1,774.91/x
  3. Step 3: Cross multiply
    3,420.29x = 5,127.33 × 1,774.91
  4. Step 4: Simplify right side
    3,420.29x = 9,100,549.29
  5. Step 5: Solve for x
    x = 9,100,549.29/3,420.29
  6. Step 6: Final answer
    x = 2,660.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.