Home / 1,636.04-2,257.62-972.74

Finding the Fourth Proportional to 1,636.04, 2,257.62 and 972.74

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Solution

The fourth proportional to 1,636.04, 2,257.62 and 972.74 is: 1,342.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,636.04 : 2,257.62 = 972.74 : x
  2. Step 2: Convert to fraction form
    1,636.04/2,257.62 = 972.74/x
  3. Step 3: Cross multiply
    1,636.04x = 2,257.62 × 972.74
  4. Step 4: Simplify right side
    1,636.04x = 2,196,077.28
  5. Step 5: Solve for x
    x = 2,196,077.28/1,636.04
  6. Step 6: Final answer
    x = 1,342.31

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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.