Home / 3,756.81-5,636.01-1,124.28

Finding the Fourth Proportional to 3,756.81, 5,636.01 and 1,124.28

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Solution

The fourth proportional to 3,756.81, 5,636.01 and 1,124.28 is: 1,686.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,756.81 : 5,636.01 = 1,124.28 : x
  2. Step 2: Convert to fraction form
    3,756.81/5,636.01 = 1,124.28/x
  3. Step 3: Cross multiply
    3,756.81x = 5,636.01 × 1,124.28
  4. Step 4: Simplify right side
    3,756.81x = 6,336,453.32
  5. Step 5: Solve for x
    x = 6,336,453.32/3,756.81
  6. Step 6: Final answer
    x = 1,686.66

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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.