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Finding the Fourth Proportional to 6,450, 8,900.94 and 3,655.50

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Solution

The fourth proportional to 6,450, 8,900.94 and 3,655.50 is: 5,044.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,450 : 8,900.94 = 3,655.50 : x
  2. Step 2: Convert to fraction form
    6,450/8,900.94 = 3,655.50/x
  3. Step 3: Cross multiply
    6,450x = 8,900.94 × 3,655.50
  4. Step 4: Simplify right side
    6,450x = 32,537,386.17
  5. Step 5: Solve for x
    x = 32,537,386.17/6,450
  6. Step 6: Final answer
    x = 5,044.56

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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.