Home / 4,742.18-7,114.48-1,455.30

Finding the Fourth Proportional to 4,742.18, 7,114.48 and 1,455.30

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Solution

The fourth proportional to 4,742.18, 7,114.48 and 1,455.30 is: 2,183.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,742.18 : 7,114.48 = 1,455.30 : x
  2. Step 2: Convert to fraction form
    4,742.18/7,114.48 = 1,455.30/x
  3. Step 3: Cross multiply
    4,742.18x = 7,114.48 × 1,455.30
  4. Step 4: Simplify right side
    4,742.18x = 10,353,707.29
  5. Step 5: Solve for x
    x = 10,353,707.29/4,742.18
  6. Step 6: Final answer
    x = 2,183.32

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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.