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Finding the Fourth Proportional to 6,685.64, 9,223.08 and 4,328.56

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Solution

The fourth proportional to 6,685.64, 9,223.08 and 4,328.56 is: 5,971.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,685.64 : 9,223.08 = 4,328.56 : x
  2. Step 2: Convert to fraction form
    6,685.64/9,223.08 = 4,328.56/x
  3. Step 3: Cross multiply
    6,685.64x = 9,223.08 × 4,328.56
  4. Step 4: Simplify right side
    6,685.64x = 39,922,655.16
  5. Step 5: Solve for x
    x = 39,922,655.16/6,685.64
  6. Step 6: Final answer
    x = 5,971.40

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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.