Home / 5,187.58-7,158.88-2,829.74

Finding the Fourth Proportional to 5,187.58, 7,158.88 and 2,829.74

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Solution

The fourth proportional to 5,187.58, 7,158.88 and 2,829.74 is: 3,905.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.58 : 7,158.88 = 2,829.74 : x
  2. Step 2: Convert to fraction form
    5,187.58/7,158.88 = 2,829.74/x
  3. Step 3: Cross multiply
    5,187.58x = 7,158.88 × 2,829.74
  4. Step 4: Simplify right side
    5,187.58x = 20,257,736.83
  5. Step 5: Solve for x
    x = 20,257,736.83/5,187.58
  6. Step 6: Final answer
    x = 3,905.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.