Home / 1,413.39-2,119.70-591.53

Finding the Fourth Proportional to 1,413.39, 2,119.70 and 591.53

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Solution

The fourth proportional to 1,413.39, 2,119.70 and 591.53 is: 887.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,413.39 : 2,119.70 = 591.53 : x
  2. Step 2: Convert to fraction form
    1,413.39/2,119.70 = 591.53/x
  3. Step 3: Cross multiply
    1,413.39x = 2,119.70 × 591.53
  4. Step 4: Simplify right side
    1,413.39x = 1,253,866.14
  5. Step 5: Solve for x
    x = 1,253,866.14/1,413.39
  6. Step 6: Final answer
    x = 887.13

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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.