Home / 6,430.27-8,868.77-4,305.12

Finding the Fourth Proportional to 6,430.27, 8,868.77 and 4,305.12

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Solution

The fourth proportional to 6,430.27, 8,868.77 and 4,305.12 is: 5,937.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,430.27 : 8,868.77 = 4,305.12 : x
  2. Step 2: Convert to fraction form
    6,430.27/8,868.77 = 4,305.12/x
  3. Step 3: Cross multiply
    6,430.27x = 8,868.77 × 4,305.12
  4. Step 4: Simplify right side
    6,430.27x = 38,181,119.75
  5. Step 5: Solve for x
    x = 38,181,119.75/6,430.27
  6. Step 6: Final answer
    x = 5,937.72

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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.