Home / 2,887.04-4,311.60-2,856.80

Finding the Fourth Proportional to 2,887.04, 4,311.60 and 2,856.80

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Solution

The fourth proportional to 2,887.04, 4,311.60 and 2,856.80 is: 4,266.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,887.04 : 4,311.60 = 2,856.80 : x
  2. Step 2: Convert to fraction form
    2,887.04/4,311.60 = 2,856.80/x
  3. Step 3: Cross multiply
    2,887.04x = 4,311.60 × 2,856.80
  4. Step 4: Simplify right side
    2,887.04x = 12,317,378.88
  5. Step 5: Solve for x
    x = 12,317,378.88/2,887.04
  6. Step 6: Final answer
    x = 4,266.44

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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.