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Finding the Fourth Proportional to 4,538.80, 6,802.80 and 2,346.40

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Solution

The fourth proportional to 4,538.80, 6,802.80 and 2,346.40 is: 3,516.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,538.80 : 6,802.80 = 2,346.40 : x
  2. Step 2: Convert to fraction form
    4,538.80/6,802.80 = 2,346.40/x
  3. Step 3: Cross multiply
    4,538.80x = 6,802.80 × 2,346.40
  4. Step 4: Simplify right side
    4,538.80x = 15,962,089.92
  5. Step 5: Solve for x
    x = 15,962,089.92/4,538.80
  6. Step 6: Final answer
    x = 3,516.81

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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.