Home / 1,518.24-2,278.80-942.24

Finding the Fourth Proportional to 1,518.24, 2,278.80 and 942.24

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Solution

The fourth proportional to 1,518.24, 2,278.80 and 942.24 is: 1,414.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,518.24 : 2,278.80 = 942.24 : x
  2. Step 2: Convert to fraction form
    1,518.24/2,278.80 = 942.24/x
  3. Step 3: Cross multiply
    1,518.24x = 2,278.80 × 942.24
  4. Step 4: Simplify right side
    1,518.24x = 2,147,176.51
  5. Step 5: Solve for x
    x = 2,147,176.51/1,518.24
  6. Step 6: Final answer
    x = 1,414.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.