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Finding the Fourth Proportional to 2,347.76, 3,539.27 and 2,189.22

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Solution

The fourth proportional to 2,347.76, 3,539.27 and 2,189.22 is: 3,300.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,347.76 : 3,539.27 = 2,189.22 : x
  2. Step 2: Convert to fraction form
    2,347.76/3,539.27 = 2,189.22/x
  3. Step 3: Cross multiply
    2,347.76x = 3,539.27 × 2,189.22
  4. Step 4: Simplify right side
    2,347.76x = 7,748,229.72
  5. Step 5: Solve for x
    x = 7,748,229.72/2,347.76
  6. Step 6: Final answer
    x = 3,300.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.