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Finding the Fourth Proportional to 6,620.99, 9,134.35 and 4,264.49

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Solution

The fourth proportional to 6,620.99, 9,134.35 and 4,264.49 is: 5,883.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,620.99 : 9,134.35 = 4,264.49 : x
  2. Step 2: Convert to fraction form
    6,620.99/9,134.35 = 4,264.49/x
  3. Step 3: Cross multiply
    6,620.99x = 9,134.35 × 4,264.49
  4. Step 4: Simplify right side
    6,620.99x = 38,953,356.41
  5. Step 5: Solve for x
    x = 38,953,356.41/6,620.99
  6. Step 6: Final answer
    x = 5,883.32

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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.