Home / 2,430.10-3,353.16-1,381.96

Finding the Fourth Proportional to 2,430.10, 3,353.16 and 1,381.96

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Solution

The fourth proportional to 2,430.10, 3,353.16 and 1,381.96 is: 1,906.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,430.10 : 3,353.16 = 1,381.96 : x
  2. Step 2: Convert to fraction form
    2,430.10/3,353.16 = 1,381.96/x
  3. Step 3: Cross multiply
    2,430.10x = 3,353.16 × 1,381.96
  4. Step 4: Simplify right side
    2,430.10x = 4,633,932.99
  5. Step 5: Solve for x
    x = 4,633,932.99/2,430.10
  6. Step 6: Final answer
    x = 1,906.89

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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.