Home / 3,156.31-4,735.37-1,307.08

Finding the Fourth Proportional to 3,156.31, 4,735.37 and 1,307.08

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Solution

The fourth proportional to 3,156.31, 4,735.37 and 1,307.08 is: 1,960.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156.31 : 4,735.37 = 1,307.08 : x
  2. Step 2: Convert to fraction form
    3,156.31/4,735.37 = 1,307.08/x
  3. Step 3: Cross multiply
    3,156.31x = 4,735.37 × 1,307.08
  4. Step 4: Simplify right side
    3,156.31x = 6,189,507.42
  5. Step 5: Solve for x
    x = 6,189,507.42/3,156.31
  6. Step 6: Final answer
    x = 1,960.99

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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.