Home / 1,637.20-2,455.92-526.36

Finding the Fourth Proportional to 1,637.20, 2,455.92 and 526.36

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Solution

The fourth proportional to 1,637.20, 2,455.92 and 526.36 is: 789.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,637.20 : 2,455.92 = 526.36 : x
  2. Step 2: Convert to fraction form
    1,637.20/2,455.92 = 526.36/x
  3. Step 3: Cross multiply
    1,637.20x = 2,455.92 × 526.36
  4. Step 4: Simplify right side
    1,637.20x = 1,292,698.05
  5. Step 5: Solve for x
    x = 1,292,698.05/1,637.20
  6. Step 6: Final answer
    x = 789.58

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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.