Home / 6,430-8,867.31-4,193.59

Finding the Fourth Proportional to 6,430, 8,867.31 and 4,193.59

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Solution

The fourth proportional to 6,430, 8,867.31 and 4,193.59 is: 5,783.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,430 : 8,867.31 = 4,193.59 : x
  2. Step 2: Convert to fraction form
    6,430/8,867.31 = 4,193.59/x
  3. Step 3: Cross multiply
    6,430x = 8,867.31 × 4,193.59
  4. Step 4: Simplify right side
    6,430x = 37,185,862.54
  5. Step 5: Solve for x
    x = 37,185,862.54/6,430
  6. Step 6: Final answer
    x = 5,783.18

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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.