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Finding the Fourth Proportional to 6,461.93, 8,914.32 and 4,223.90

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Solution

The fourth proportional to 6,461.93, 8,914.32 and 4,223.90 is: 5,826.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,461.93 : 8,914.32 = 4,223.90 : x
  2. Step 2: Convert to fraction form
    6,461.93/8,914.32 = 4,223.90/x
  3. Step 3: Cross multiply
    6,461.93x = 8,914.32 × 4,223.90
  4. Step 4: Simplify right side
    6,461.93x = 37,653,218.53
  5. Step 5: Solve for x
    x = 37,653,218.53/6,461.93
  6. Step 6: Final answer
    x = 5,826.93

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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.