Home / 1,413.28-2,130.52-1,301.92

Finding the Fourth Proportional to 1,413.28, 2,130.52 and 1,301.92

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Solution

The fourth proportional to 1,413.28, 2,130.52 and 1,301.92 is: 1,962.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,413.28 : 2,130.52 = 1,301.92 : x
  2. Step 2: Convert to fraction form
    1,413.28/2,130.52 = 1,301.92/x
  3. Step 3: Cross multiply
    1,413.28x = 2,130.52 × 1,301.92
  4. Step 4: Simplify right side
    1,413.28x = 2,773,766.60
  5. Step 5: Solve for x
    x = 2,773,766.60/1,413.28
  6. Step 6: Final answer
    x = 1,962.64

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.