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Finding the Fourth Proportional to 4,676.40, 6,440.31 and 4,574.34

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Solution

The fourth proportional to 4,676.40, 6,440.31 and 4,574.34 is: 6,299.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,676.40 : 6,440.31 = 4,574.34 : x
  2. Step 2: Convert to fraction form
    4,676.40/6,440.31 = 4,574.34/x
  3. Step 3: Cross multiply
    4,676.40x = 6,440.31 × 4,574.34
  4. Step 4: Simplify right side
    4,676.40x = 29,460,167.65
  5. Step 5: Solve for x
    x = 29,460,167.65/4,676.40
  6. Step 6: Final answer
    x = 6,299.75

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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.