Home / 3,765.72-5,643.36-1,423.32

Finding the Fourth Proportional to 3,765.72, 5,643.36 and 1,423.32

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Solution

The fourth proportional to 3,765.72, 5,643.36 and 1,423.32 is: 2,133.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,765.72 : 5,643.36 = 1,423.32 : x
  2. Step 2: Convert to fraction form
    3,765.72/5,643.36 = 1,423.32/x
  3. Step 3: Cross multiply
    3,765.72x = 5,643.36 × 1,423.32
  4. Step 4: Simplify right side
    3,765.72x = 8,032,307.16
  5. Step 5: Solve for x
    x = 8,032,307.16/3,765.72
  6. Step 6: Final answer
    x = 2,133.01

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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.