Home / 3,621.51-5,433.48-1,430.87

Finding the Fourth Proportional to 3,621.51, 5,433.48 and 1,430.87

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Solution

The fourth proportional to 3,621.51, 5,433.48 and 1,430.87 is: 2,146.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.51 : 5,433.48 = 1,430.87 : x
  2. Step 2: Convert to fraction form
    3,621.51/5,433.48 = 1,430.87/x
  3. Step 3: Cross multiply
    3,621.51x = 5,433.48 × 1,430.87
  4. Step 4: Simplify right side
    3,621.51x = 7,774,576.36
  5. Step 5: Solve for x
    x = 7,774,576.36/3,621.51
  6. Step 6: Final answer
    x = 2,146.78

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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.