Home / 2,858.18-4,289.39-2,125.53

Finding the Fourth Proportional to 2,858.18, 4,289.39 and 2,125.53

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Solution

The fourth proportional to 2,858.18, 4,289.39 and 2,125.53 is: 3,189.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,858.18 : 4,289.39 = 2,125.53 : x
  2. Step 2: Convert to fraction form
    2,858.18/4,289.39 = 2,125.53/x
  3. Step 3: Cross multiply
    2,858.18x = 4,289.39 × 2,125.53
  4. Step 4: Simplify right side
    2,858.18x = 9,117,216.50
  5. Step 5: Solve for x
    x = 9,117,216.50/2,858.18
  6. Step 6: Final answer
    x = 3,189.87

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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.