Home / 6,420.21-9,629.26-2,259.24

Finding the Fourth Proportional to 6,420.21, 9,629.26 and 2,259.24

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Solution

The fourth proportional to 6,420.21, 9,629.26 and 2,259.24 is: 3,388.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,420.21 : 9,629.26 = 2,259.24 : x
  2. Step 2: Convert to fraction form
    6,420.21/9,629.26 = 2,259.24/x
  3. Step 3: Cross multiply
    6,420.21x = 9,629.26 × 2,259.24
  4. Step 4: Simplify right side
    6,420.21x = 21,754,809.36
  5. Step 5: Solve for x
    x = 21,754,809.36/6,420.21
  6. Step 6: Final answer
    x = 3,388.49

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.