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Finding the Fourth Proportional to 4,743.51, 7,109.12 and 2,549.68

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Solution

The fourth proportional to 4,743.51, 7,109.12 and 2,549.68 is: 3,821.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,743.51 : 7,109.12 = 2,549.68 : x
  2. Step 2: Convert to fraction form
    4,743.51/7,109.12 = 2,549.68/x
  3. Step 3: Cross multiply
    4,743.51x = 7,109.12 × 2,549.68
  4. Step 4: Simplify right side
    4,743.51x = 18,125,955.34
  5. Step 5: Solve for x
    x = 18,125,955.34/4,743.51
  6. Step 6: Final answer
    x = 3,821.21

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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.