Home / 1,452.05-2,176.37-670.40

Finding the Fourth Proportional to 1,452.05, 2,176.37 and 670.40

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Solution

The fourth proportional to 1,452.05, 2,176.37 and 670.40 is: 1,004.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,452.05 : 2,176.37 = 670.40 : x
  2. Step 2: Convert to fraction form
    1,452.05/2,176.37 = 670.40/x
  3. Step 3: Cross multiply
    1,452.05x = 2,176.37 × 670.40
  4. Step 4: Simplify right side
    1,452.05x = 1,459,024.21
  5. Step 5: Solve for x
    x = 1,459,024.21/1,452.05
  6. Step 6: Final answer
    x = 1,004.81

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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.