Home / 1,509.10-2,263.30-413.55

Finding the Fourth Proportional to 1,509.10, 2,263.30 and 413.55

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Solution

The fourth proportional to 1,509.10, 2,263.30 and 413.55 is: 620.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,509.10 : 2,263.30 = 413.55 : x
  2. Step 2: Convert to fraction form
    1,509.10/2,263.30 = 413.55/x
  3. Step 3: Cross multiply
    1,509.10x = 2,263.30 × 413.55
  4. Step 4: Simplify right side
    1,509.10x = 935,986.68
  5. Step 5: Solve for x
    x = 935,986.68/1,509.10
  6. Step 6: Final answer
    x = 620.23

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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.