Home / 6,430.23-8,874.33-3,911.76

Finding the Fourth Proportional to 6,430.23, 8,874.33 and 3,911.76

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Solution

The fourth proportional to 6,430.23, 8,874.33 and 3,911.76 is: 5,398.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,430.23 : 8,874.33 = 3,911.76 : x
  2. Step 2: Convert to fraction form
    6,430.23/8,874.33 = 3,911.76/x
  3. Step 3: Cross multiply
    6,430.23x = 8,874.33 × 3,911.76
  4. Step 4: Simplify right side
    6,430.23x = 34,714,249.12
  5. Step 5: Solve for x
    x = 34,714,249.12/6,430.23
  6. Step 6: Final answer
    x = 5,398.60

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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.