Home / 1,307.00-1,964.61-1,208.58

Finding the Fourth Proportional to 1,307.00, 1,964.61 and 1,208.58

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Solution

The fourth proportional to 1,307.00, 1,964.61 and 1,208.58 is: 1,816.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,307.00 : 1,964.61 = 1,208.58 : x
  2. Step 2: Convert to fraction form
    1,307.00/1,964.61 = 1,208.58/x
  3. Step 3: Cross multiply
    1,307.00x = 1,964.61 × 1,208.58
  4. Step 4: Simplify right side
    1,307.00x = 2,374,388.35
  5. Step 5: Solve for x
    x = 2,374,388.35/1,307.00
  6. Step 6: Final answer
    x = 1,816.68

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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.