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Finding the Fourth Proportional to 5,668.64, 7,823.04 and 3,430.88

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Solution

The fourth proportional to 5,668.64, 7,823.04 and 3,430.88 is: 4,734.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,668.64 : 7,823.04 = 3,430.88 : x
  2. Step 2: Convert to fraction form
    5,668.64/7,823.04 = 3,430.88/x
  3. Step 3: Cross multiply
    5,668.64x = 7,823.04 × 3,430.88
  4. Step 4: Simplify right side
    5,668.64x = 26,839,911.48
  5. Step 5: Solve for x
    x = 26,839,911.48/5,668.64
  6. Step 6: Final answer
    x = 4,734.81

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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.