Home / 4,715.15-7,071.81-4,480.99

Finding the Fourth Proportional to 4,715.15, 7,071.81 and 4,480.99

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Solution

The fourth proportional to 4,715.15, 7,071.81 and 4,480.99 is: 6,720.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,715.15 : 7,071.81 = 4,480.99 : x
  2. Step 2: Convert to fraction form
    4,715.15/7,071.81 = 4,480.99/x
  3. Step 3: Cross multiply
    4,715.15x = 7,071.81 × 4,480.99
  4. Step 4: Simplify right side
    4,715.15x = 31,688,675.41
  5. Step 5: Solve for x
    x = 31,688,675.41/4,715.15
  6. Step 6: Final answer
    x = 6,720.62

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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.