Home / 5,412.48-8,112.83-2,776.32

Finding the Fourth Proportional to 5,412.48, 8,112.83 and 2,776.32

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Solution

The fourth proportional to 5,412.48, 8,112.83 and 2,776.32 is: 4,161.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,412.48 : 8,112.83 = 2,776.32 : x
  2. Step 2: Convert to fraction form
    5,412.48/8,112.83 = 2,776.32/x
  3. Step 3: Cross multiply
    5,412.48x = 8,112.83 × 2,776.32
  4. Step 4: Simplify right side
    5,412.48x = 22,523,798.30
  5. Step 5: Solve for x
    x = 22,523,798.30/5,412.48
  6. Step 6: Final answer
    x = 4,161.46

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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.