Home / 4,981.40-7,413.30-4,815.30

Finding the Fourth Proportional to 4,981.40, 7,413.30 and 4,815.30

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Solution

The fourth proportional to 4,981.40, 7,413.30 and 4,815.30 is: 7,166.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,981.40 : 7,413.30 = 4,815.30 : x
  2. Step 2: Convert to fraction form
    4,981.40/7,413.30 = 4,815.30/x
  3. Step 3: Cross multiply
    4,981.40x = 7,413.30 × 4,815.30
  4. Step 4: Simplify right side
    4,981.40x = 35,697,291.29
  5. Step 5: Solve for x
    x = 35,697,291.29/4,981.40
  6. Step 6: Final answer
    x = 7,166.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.