Home / 2,430.21-3,354.83-1,899.86

Finding the Fourth Proportional to 2,430.21, 3,354.83 and 1,899.86

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Solution

The fourth proportional to 2,430.21, 3,354.83 and 1,899.86 is: 2,622.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,430.21 : 3,354.83 = 1,899.86 : x
  2. Step 2: Convert to fraction form
    2,430.21/3,354.83 = 1,899.86/x
  3. Step 3: Cross multiply
    2,430.21x = 3,354.83 × 1,899.86
  4. Step 4: Simplify right side
    2,430.21x = 6,373,707.32
  5. Step 5: Solve for x
    x = 6,373,707.32/2,430.21
  6. Step 6: Final answer
    x = 2,622.70

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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.