Home / 2,854.37-4,281.31-1,122.99

Finding the Fourth Proportional to 2,854.37, 4,281.31 and 1,122.99

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Solution

The fourth proportional to 2,854.37, 4,281.31 and 1,122.99 is: 1,684.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,854.37 : 4,281.31 = 1,122.99 : x
  2. Step 2: Convert to fraction form
    2,854.37/4,281.31 = 1,122.99/x
  3. Step 3: Cross multiply
    2,854.37x = 4,281.31 × 1,122.99
  4. Step 4: Simplify right side
    2,854.37x = 4,807,868.32
  5. Step 5: Solve for x
    x = 4,807,868.32/2,854.37
  6. Step 6: Final answer
    x = 1,684.39

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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.