Home / 1,551.42-2,138.40-1,504.98

Finding the Fourth Proportional to 1,551.42, 2,138.40 and 1,504.98

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Solution

The fourth proportional to 1,551.42, 2,138.40 and 1,504.98 is: 2,074.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,551.42 : 2,138.40 = 1,504.98 : x
  2. Step 2: Convert to fraction form
    1,551.42/2,138.40 = 1,504.98/x
  3. Step 3: Cross multiply
    1,551.42x = 2,138.40 × 1,504.98
  4. Step 4: Simplify right side
    1,551.42x = 3,218,249.23
  5. Step 5: Solve for x
    x = 3,218,249.23/1,551.42
  6. Step 6: Final answer
    x = 2,074.39

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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.