Home / 3,137.58-4,329.63-1,721.04

Finding the Fourth Proportional to 3,137.58, 4,329.63 and 1,721.04

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Solution

The fourth proportional to 3,137.58, 4,329.63 and 1,721.04 is: 2,374.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.58 : 4,329.63 = 1,721.04 : x
  2. Step 2: Convert to fraction form
    3,137.58/4,329.63 = 1,721.04/x
  3. Step 3: Cross multiply
    3,137.58x = 4,329.63 × 1,721.04
  4. Step 4: Simplify right side
    3,137.58x = 7,451,457.81
  5. Step 5: Solve for x
    x = 7,451,457.81/3,137.58
  6. Step 6: Final answer
    x = 2,374.91

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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.