Home / 2,858.49-4,288.80-1,216.32

Finding the Fourth Proportional to 2,858.49, 4,288.80 and 1,216.32

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Solution

The fourth proportional to 2,858.49, 4,288.80 and 1,216.32 is: 1,824.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,858.49 : 4,288.80 = 1,216.32 : x
  2. Step 2: Convert to fraction form
    2,858.49/4,288.80 = 1,216.32/x
  3. Step 3: Cross multiply
    2,858.49x = 4,288.80 × 1,216.32
  4. Step 4: Simplify right side
    2,858.49x = 5,216,557.78
  5. Step 5: Solve for x
    x = 5,216,557.78/2,858.49
  6. Step 6: Final answer
    x = 1,824.93

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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.