Home / 6,420.67-9,631.00-4,307.48

Finding the Fourth Proportional to 6,420.67, 9,631.00 and 4,307.48

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Solution

The fourth proportional to 6,420.67, 9,631.00 and 4,307.48 is: 6,461.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,420.67 : 9,631.00 = 4,307.48 : x
  2. Step 2: Convert to fraction form
    6,420.67/9,631.00 = 4,307.48/x
  3. Step 3: Cross multiply
    6,420.67x = 9,631.00 × 4,307.48
  4. Step 4: Simplify right side
    6,420.67x = 41,485,333.23
  5. Step 5: Solve for x
    x = 41,485,333.23/6,420.67
  6. Step 6: Final answer
    x = 6,461.22

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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.