Home / 1,548.30-2,135.12-1,413.44

Finding the Fourth Proportional to 1,548.30, 2,135.12 and 1,413.44

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Solution

The fourth proportional to 1,548.30, 2,135.12 and 1,413.44 is: 1,949.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,548.30 : 2,135.12 = 1,413.44 : x
  2. Step 2: Convert to fraction form
    1,548.30/2,135.12 = 1,413.44/x
  3. Step 3: Cross multiply
    1,548.30x = 2,135.12 × 1,413.44
  4. Step 4: Simplify right side
    1,548.30x = 3,017,864.01
  5. Step 5: Solve for x
    x = 3,017,864.01/1,548.30
  6. Step 6: Final answer
    x = 1,949.15

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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.