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Finding the Fourth Proportional to 6,328.89, 8,737.47 and 4,203.81

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Solution

The fourth proportional to 6,328.89, 8,737.47 and 4,203.81 is: 5,803.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,328.89 : 8,737.47 = 4,203.81 : x
  2. Step 2: Convert to fraction form
    6,328.89/8,737.47 = 4,203.81/x
  3. Step 3: Cross multiply
    6,328.89x = 8,737.47 × 4,203.81
  4. Step 4: Simplify right side
    6,328.89x = 36,730,663.76
  5. Step 5: Solve for x
    x = 36,730,663.76/6,328.89
  6. Step 6: Final answer
    x = 5,803.65

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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.