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Finding the Fourth Proportional to 6,386.91, 8,813.93 and 3,592.41

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Solution

The fourth proportional to 6,386.91, 8,813.93 and 3,592.41 is: 4,957.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,386.91 : 8,813.93 = 3,592.41 : x
  2. Step 2: Convert to fraction form
    6,386.91/8,813.93 = 3,592.41/x
  3. Step 3: Cross multiply
    6,386.91x = 8,813.93 × 3,592.41
  4. Step 4: Simplify right side
    6,386.91x = 31,663,219.46
  5. Step 5: Solve for x
    x = 31,663,219.46/6,386.91
  6. Step 6: Final answer
    x = 4,957.52

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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.