Home / 4,806.81-7,210.58-1,520.15

Finding the Fourth Proportional to 4,806.81, 7,210.58 and 1,520.15

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Solution

The fourth proportional to 4,806.81, 7,210.58 and 1,520.15 is: 2,280.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,806.81 : 7,210.58 = 1,520.15 : x
  2. Step 2: Convert to fraction form
    4,806.81/7,210.58 = 1,520.15/x
  3. Step 3: Cross multiply
    4,806.81x = 7,210.58 × 1,520.15
  4. Step 4: Simplify right side
    4,806.81x = 10,961,119.53
  5. Step 5: Solve for x
    x = 10,961,119.53/4,806.81
  6. Step 6: Final answer
    x = 2,280.33

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1.5x scale

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.