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Finding the Fourth Proportional to 6,436.61, 9,642.59 and 4,346.30

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Solution

The fourth proportional to 6,436.61, 9,642.59 and 4,346.30 is: 6,511.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,436.61 : 9,642.59 = 4,346.30 : x
  2. Step 2: Convert to fraction form
    6,436.61/9,642.59 = 4,346.30/x
  3. Step 3: Cross multiply
    6,436.61x = 9,642.59 × 4,346.30
  4. Step 4: Simplify right side
    6,436.61x = 41,909,591.29
  5. Step 5: Solve for x
    x = 41,909,591.29/6,436.61
  6. Step 6: Final answer
    x = 6,511.13

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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.