Home / 1,518.95-2,094.23-1,238.90

Finding the Fourth Proportional to 1,518.95, 2,094.23 and 1,238.90

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Solution

The fourth proportional to 1,518.95, 2,094.23 and 1,238.90 is: 1,708.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,518.95 : 2,094.23 = 1,238.90 : x
  2. Step 2: Convert to fraction form
    1,518.95/2,094.23 = 1,238.90/x
  3. Step 3: Cross multiply
    1,518.95x = 2,094.23 × 1,238.90
  4. Step 4: Simplify right side
    1,518.95x = 2,594,524.88
  5. Step 5: Solve for x
    x = 2,594,524.88/1,518.95
  6. Step 6: Final answer
    x = 1,708.11

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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.