Home / 3,421.16-5,130.48-1,229.30

Finding the Fourth Proportional to 3,421.16, 5,130.48 and 1,229.30

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Solution

The fourth proportional to 3,421.16, 5,130.48 and 1,229.30 is: 1,843.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.16 : 5,130.48 = 1,229.30 : x
  2. Step 2: Convert to fraction form
    3,421.16/5,130.48 = 1,229.30/x
  3. Step 3: Cross multiply
    3,421.16x = 5,130.48 × 1,229.30
  4. Step 4: Simplify right side
    3,421.16x = 6,306,899.06
  5. Step 5: Solve for x
    x = 6,306,899.06/3,421.16
  6. Step 6: Final answer
    x = 1,843.50

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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.