Home / 1,812.68-2,715.60-1,485.44

Finding the Fourth Proportional to 1,812.68, 2,715.60 and 1,485.44

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Solution

The fourth proportional to 1,812.68, 2,715.60 and 1,485.44 is: 2,225.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,812.68 : 2,715.60 = 1,485.44 : x
  2. Step 2: Convert to fraction form
    1,812.68/2,715.60 = 1,485.44/x
  3. Step 3: Cross multiply
    1,812.68x = 2,715.60 × 1,485.44
  4. Step 4: Simplify right side
    1,812.68x = 4,033,860.86
  5. Step 5: Solve for x
    x = 4,033,860.86/1,812.68
  6. Step 6: Final answer
    x = 2,225.36

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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.