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Finding the Fourth Proportional to 6,890.84, 9,504.53 and 4,654.63

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Solution

The fourth proportional to 6,890.84, 9,504.53 and 4,654.63 is: 6,420.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,890.84 : 9,504.53 = 4,654.63 : x
  2. Step 2: Convert to fraction form
    6,890.84/9,504.53 = 4,654.63/x
  3. Step 3: Cross multiply
    6,890.84x = 9,504.53 × 4,654.63
  4. Step 4: Simplify right side
    6,890.84x = 44,240,022.95
  5. Step 5: Solve for x
    x = 44,240,022.95/6,890.84
  6. Step 6: Final answer
    x = 6,420.13

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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.