Home / 1,413.02-2,119.20-535.61

Finding the Fourth Proportional to 1,413.02, 2,119.20 and 535.61

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Solution

The fourth proportional to 1,413.02, 2,119.20 and 535.61 is: 803.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,413.02 : 2,119.20 = 535.61 : x
  2. Step 2: Convert to fraction form
    1,413.02/2,119.20 = 535.61/x
  3. Step 3: Cross multiply
    1,413.02x = 2,119.20 × 535.61
  4. Step 4: Simplify right side
    1,413.02x = 1,135,064.71
  5. Step 5: Solve for x
    x = 1,135,064.71/1,413.02
  6. Step 6: Final answer
    x = 803.29

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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.