Home / 2,263.75-3,124.58-1,319.49

Finding the Fourth Proportional to 2,263.75, 3,124.58 and 1,319.49

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Solution

The fourth proportional to 2,263.75, 3,124.58 and 1,319.49 is: 1,821.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,263.75 : 3,124.58 = 1,319.49 : x
  2. Step 2: Convert to fraction form
    2,263.75/3,124.58 = 1,319.49/x
  3. Step 3: Cross multiply
    2,263.75x = 3,124.58 × 1,319.49
  4. Step 4: Simplify right side
    2,263.75x = 4,122,845.47
  5. Step 5: Solve for x
    x = 4,122,845.47/2,263.75
  6. Step 6: Final answer
    x = 1,821.25

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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.