Home / 2,160.29-2,981.75-1,413.02

Finding the Fourth Proportional to 2,160.29, 2,981.75 and 1,413.02

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Solution

The fourth proportional to 2,160.29, 2,981.75 and 1,413.02 is: 1,950.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,160.29 : 2,981.75 = 1,413.02 : x
  2. Step 2: Convert to fraction form
    2,160.29/2,981.75 = 1,413.02/x
  3. Step 3: Cross multiply
    2,160.29x = 2,981.75 × 1,413.02
  4. Step 4: Simplify right side
    2,160.29x = 4,213,250.41
  5. Step 5: Solve for x
    x = 4,213,250.41/2,160.29
  6. Step 6: Final answer
    x = 1,950.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.