Home / 5,681.37-8,518.20-2,905.77

Finding the Fourth Proportional to 5,681.37, 8,518.20 and 2,905.77

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Solution

The fourth proportional to 5,681.37, 8,518.20 and 2,905.77 is: 4,356.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,681.37 : 8,518.20 = 2,905.77 : x
  2. Step 2: Convert to fraction form
    5,681.37/8,518.20 = 2,905.77/x
  3. Step 3: Cross multiply
    5,681.37x = 8,518.20 × 2,905.77
  4. Step 4: Simplify right side
    5,681.37x = 24,751,930.01
  5. Step 5: Solve for x
    x = 24,751,930.01/5,681.37
  6. Step 6: Final answer
    x = 4,356.68

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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.