Home / 2,279.55-3,148.03-1,573.21

Finding the Fourth Proportional to 2,279.55, 3,148.03 and 1,573.21

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Solution

The fourth proportional to 2,279.55, 3,148.03 and 1,573.21 is: 2,172.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,279.55 : 3,148.03 = 1,573.21 : x
  2. Step 2: Convert to fraction form
    2,279.55/3,148.03 = 1,573.21/x
  3. Step 3: Cross multiply
    2,279.55x = 3,148.03 × 1,573.21
  4. Step 4: Simplify right side
    2,279.55x = 4,952,518.18
  5. Step 5: Solve for x
    x = 4,952,518.18/2,279.55
  6. Step 6: Final answer
    x = 2,172.58

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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.