Home / 3,315.92-4,973.55-1,124.39

Finding the Fourth Proportional to 3,315.92, 4,973.55 and 1,124.39

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Solution

The fourth proportional to 3,315.92, 4,973.55 and 1,124.39 is: 1,686.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.92 : 4,973.55 = 1,124.39 : x
  2. Step 2: Convert to fraction form
    3,315.92/4,973.55 = 1,124.39/x
  3. Step 3: Cross multiply
    3,315.92x = 4,973.55 × 1,124.39
  4. Step 4: Simplify right side
    3,315.92x = 5,592,209.88
  5. Step 5: Solve for x
    x = 5,592,209.88/3,315.92
  6. Step 6: Final answer
    x = 1,686.47

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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.