Home / 2,190.96-3,023.48-1,306.76

Finding the Fourth Proportional to 2,190.96, 3,023.48 and 1,306.76

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Solution

The fourth proportional to 2,190.96, 3,023.48 and 1,306.76 is: 1,803.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.96 : 3,023.48 = 1,306.76 : x
  2. Step 2: Convert to fraction form
    2,190.96/3,023.48 = 1,306.76/x
  3. Step 3: Cross multiply
    2,190.96x = 3,023.48 × 1,306.76
  4. Step 4: Simplify right side
    2,190.96x = 3,950,962.72
  5. Step 5: Solve for x
    x = 3,950,962.72/2,190.96
  6. Step 6: Final answer
    x = 1,803.30

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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.