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Finding the Fourth Proportional to 1,235.24, 1,852.95 and 413.51

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Solution

The fourth proportional to 1,235.24, 1,852.95 and 413.51 is: 620.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235.24 : 1,852.95 = 413.51 : x
  2. Step 2: Convert to fraction form
    1,235.24/1,852.95 = 413.51/x
  3. Step 3: Cross multiply
    1,235.24x = 1,852.95 × 413.51
  4. Step 4: Simplify right side
    1,235.24x = 766,213.35
  5. Step 5: Solve for x
    x = 766,213.35/1,235.24
  6. Step 6: Final answer
    x = 620.30

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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.