Home / 1,523.75-2,100.96-1,313.55

Finding the Fourth Proportional to 1,523.75, 2,100.96 and 1,313.55

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Solution

The fourth proportional to 1,523.75, 2,100.96 and 1,313.55 is: 1,811.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,523.75 : 2,100.96 = 1,313.55 : x
  2. Step 2: Convert to fraction form
    1,523.75/2,100.96 = 1,313.55/x
  3. Step 3: Cross multiply
    1,523.75x = 2,100.96 × 1,313.55
  4. Step 4: Simplify right side
    1,523.75x = 2,759,716.01
  5. Step 5: Solve for x
    x = 2,759,716.01/1,523.75
  6. Step 6: Final answer
    x = 1,811.14

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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.