Home / 2,192.50-3,290.37-1,038.25

Finding the Fourth Proportional to 2,192.50, 3,290.37 and 1,038.25

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Solution

The fourth proportional to 2,192.50, 3,290.37 and 1,038.25 is: 1,558.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,192.50 : 3,290.37 = 1,038.25 : x
  2. Step 2: Convert to fraction form
    2,192.50/3,290.37 = 1,038.25/x
  3. Step 3: Cross multiply
    2,192.50x = 3,290.37 × 1,038.25
  4. Step 4: Simplify right side
    2,192.50x = 3,416,226.65
  5. Step 5: Solve for x
    x = 3,416,226.65/2,192.50
  6. Step 6: Final answer
    x = 1,558.14

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1.5x scale

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.