Home / 1,485-2,225.34-1,074.24

Finding the Fourth Proportional to 1,485, 2,225.34 and 1,074.24

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Solution

The fourth proportional to 1,485, 2,225.34 and 1,074.24 is: 1,609.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485 : 2,225.34 = 1,074.24 : x
  2. Step 2: Convert to fraction form
    1,485/2,225.34 = 1,074.24/x
  3. Step 3: Cross multiply
    1,485x = 2,225.34 × 1,074.24
  4. Step 4: Simplify right side
    1,485x = 2,390,549.24
  5. Step 5: Solve for x
    x = 2,390,549.24/1,485
  6. Step 6: Final answer
    x = 1,609.80

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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.