Home / 6,430.92-9,641.52-5,131.68

Finding the Fourth Proportional to 6,430.92, 9,641.52 and 5,131.68

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Solution

The fourth proportional to 6,430.92, 9,641.52 and 5,131.68 is: 7,693.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,430.92 : 9,641.52 = 5,131.68 : x
  2. Step 2: Convert to fraction form
    6,430.92/9,641.52 = 5,131.68/x
  3. Step 3: Cross multiply
    6,430.92x = 9,641.52 × 5,131.68
  4. Step 4: Simplify right side
    6,430.92x = 49,477,195.35
  5. Step 5: Solve for x
    x = 49,477,195.35/6,430.92
  6. Step 6: Final answer
    x = 7,693.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.