Home / 6,431.48-8,872.81-4,192.53

Finding the Fourth Proportional to 6,431.48, 8,872.81 and 4,192.53

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Solution

The fourth proportional to 6,431.48, 8,872.81 and 4,192.53 is: 5,783.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,431.48 : 8,872.81 = 4,192.53 : x
  2. Step 2: Convert to fraction form
    6,431.48/8,872.81 = 4,192.53/x
  3. Step 3: Cross multiply
    6,431.48x = 8,872.81 × 4,192.53
  4. Step 4: Simplify right side
    6,431.48x = 37,199,501.15
  5. Step 5: Solve for x
    x = 37,199,501.15/6,431.48
  6. Step 6: Final answer
    x = 5,783.98

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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.