Home / 2,427.54-3,349.80-1,379.40

Finding the Fourth Proportional to 2,427.54, 3,349.80 and 1,379.40

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Solution

The fourth proportional to 2,427.54, 3,349.80 and 1,379.40 is: 1,903.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,427.54 : 3,349.80 = 1,379.40 : x
  2. Step 2: Convert to fraction form
    2,427.54/3,349.80 = 1,379.40/x
  3. Step 3: Cross multiply
    2,427.54x = 3,349.80 × 1,379.40
  4. Step 4: Simplify right side
    2,427.54x = 4,620,714.12
  5. Step 5: Solve for x
    x = 4,620,714.12/2,427.54
  6. Step 6: Final answer
    x = 1,903.46

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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.