Home / 3,430.98-5,145.58-1,350.98

Finding the Fourth Proportional to 3,430.98, 5,145.58 and 1,350.98

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Solution

The fourth proportional to 3,430.98, 5,145.58 and 1,350.98 is: 2,026.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,430.98 : 5,145.58 = 1,350.98 : x
  2. Step 2: Convert to fraction form
    3,430.98/5,145.58 = 1,350.98/x
  3. Step 3: Cross multiply
    3,430.98x = 5,145.58 × 1,350.98
  4. Step 4: Simplify right side
    3,430.98x = 6,951,575.67
  5. Step 5: Solve for x
    x = 6,951,575.67/3,430.98
  6. Step 6: Final answer
    x = 2,026.12

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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.