Home / 1,603.55-2,213.18-1,274.48

Finding the Fourth Proportional to 1,603.55, 2,213.18 and 1,274.48

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Solution

The fourth proportional to 1,603.55, 2,213.18 and 1,274.48 is: 1,759.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,603.55 : 2,213.18 = 1,274.48 : x
  2. Step 2: Convert to fraction form
    1,603.55/2,213.18 = 1,274.48/x
  3. Step 3: Cross multiply
    1,603.55x = 2,213.18 × 1,274.48
  4. Step 4: Simplify right side
    1,603.55x = 2,820,653.65
  5. Step 5: Solve for x
    x = 2,820,653.65/1,603.55
  6. Step 6: Final answer
    x = 1,759.01

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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.