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Finding the Fourth Proportional to 5,577.40, 8,364.90 and 2,457.40

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Solution

The fourth proportional to 5,577.40, 8,364.90 and 2,457.40 is: 3,685.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,577.40 : 8,364.90 = 2,457.40 : x
  2. Step 2: Convert to fraction form
    5,577.40/8,364.90 = 2,457.40/x
  3. Step 3: Cross multiply
    5,577.40x = 8,364.90 × 2,457.40
  4. Step 4: Simplify right side
    5,577.40x = 20,555,905.26
  5. Step 5: Solve for x
    x = 20,555,905.26/5,577.40
  6. Step 6: Final answer
    x = 3,685.57

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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.