Home / 6,420.24-9,631.28-2,038.08

Finding the Fourth Proportional to 6,420.24, 9,631.28 and 2,038.08

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Solution

The fourth proportional to 6,420.24, 9,631.28 and 2,038.08 is: 3,057.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,420.24 : 9,631.28 = 2,038.08 : x
  2. Step 2: Convert to fraction form
    6,420.24/9,631.28 = 2,038.08/x
  3. Step 3: Cross multiply
    6,420.24x = 9,631.28 × 2,038.08
  4. Step 4: Simplify right side
    6,420.24x = 19,629,308.95
  5. Step 5: Solve for x
    x = 19,629,308.95/6,420.24
  6. Step 6: Final answer
    x = 3,057.41

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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.