Home / 2,637.21-3,639.56-1,458.39

Finding the Fourth Proportional to 2,637.21, 3,639.56 and 1,458.39

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Solution

The fourth proportional to 2,637.21, 3,639.56 and 1,458.39 is: 2,012.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,637.21 : 3,639.56 = 1,458.39 : x
  2. Step 2: Convert to fraction form
    2,637.21/3,639.56 = 1,458.39/x
  3. Step 3: Cross multiply
    2,637.21x = 3,639.56 × 1,458.39
  4. Step 4: Simplify right side
    2,637.21x = 5,307,890.62
  5. Step 5: Solve for x
    x = 5,307,890.62/2,637.21
  6. Step 6: Final answer
    x = 2,012.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.