Home / 6,430.23-8,876.61-3,777.81

Finding the Fourth Proportional to 6,430.23, 8,876.61 and 3,777.81

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Solution

The fourth proportional to 6,430.23, 8,876.61 and 3,777.81 is: 5,215.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,430.23 : 8,876.61 = 3,777.81 : x
  2. Step 2: Convert to fraction form
    6,430.23/8,876.61 = 3,777.81/x
  3. Step 3: Cross multiply
    6,430.23x = 8,876.61 × 3,777.81
  4. Step 4: Simplify right side
    6,430.23x = 33,534,082.75
  5. Step 5: Solve for x
    x = 33,534,082.75/6,430.23
  6. Step 6: Final answer
    x = 5,215.07

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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.