Home / 2,847.36-4,271.40-999.57

Finding the Fourth Proportional to 2,847.36, 4,271.40 and 999.57

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Solution

The fourth proportional to 2,847.36, 4,271.40 and 999.57 is: 1,499.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,847.36 : 4,271.40 = 999.57 : x
  2. Step 2: Convert to fraction form
    2,847.36/4,271.40 = 999.57/x
  3. Step 3: Cross multiply
    2,847.36x = 4,271.40 × 999.57
  4. Step 4: Simplify right side
    2,847.36x = 4,269,563.30
  5. Step 5: Solve for x
    x = 4,269,563.30/2,847.36
  6. Step 6: Final answer
    x = 1,499.48

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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.