Home / 3,380.77-5,066.30-1,430.29

Finding the Fourth Proportional to 3,380.77, 5,066.30 and 1,430.29

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Solution

The fourth proportional to 3,380.77, 5,066.30 and 1,430.29 is: 2,143.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,380.77 : 5,066.30 = 1,430.29 : x
  2. Step 2: Convert to fraction form
    3,380.77/5,066.30 = 1,430.29/x
  3. Step 3: Cross multiply
    3,380.77x = 5,066.30 × 1,430.29
  4. Step 4: Simplify right side
    3,380.77x = 7,246,271.08
  5. Step 5: Solve for x
    x = 7,246,271.08/3,380.77
  6. Step 6: Final answer
    x = 2,143.38

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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.