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Finding the Fourth Proportional to 6,643.34, 9,165.53 and 4,088.48

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Solution

The fourth proportional to 6,643.34, 9,165.53 and 4,088.48 is: 5,640.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,643.34 : 9,165.53 = 4,088.48 : x
  2. Step 2: Convert to fraction form
    6,643.34/9,165.53 = 4,088.48/x
  3. Step 3: Cross multiply
    6,643.34x = 9,165.53 × 4,088.48
  4. Step 4: Simplify right side
    6,643.34x = 37,473,088.57
  5. Step 5: Solve for x
    x = 37,473,088.57/6,643.34
  6. Step 6: Final answer
    x = 5,640.70

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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.