Home / 1,628.34-2,443.73-1,307.58

Finding the Fourth Proportional to 1,628.34, 2,443.73 and 1,307.58

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Solution

The fourth proportional to 1,628.34, 2,443.73 and 1,307.58 is: 1,962.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,628.34 : 2,443.73 = 1,307.58 : x
  2. Step 2: Convert to fraction form
    1,628.34/2,443.73 = 1,307.58/x
  3. Step 3: Cross multiply
    1,628.34x = 2,443.73 × 1,307.58
  4. Step 4: Simplify right side
    1,628.34x = 3,195,365.94
  5. Step 5: Solve for x
    x = 3,195,365.94/1,628.34
  6. Step 6: Final answer
    x = 1,962.35

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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.