Home / 2,862.07-4,289.56-1,216.75

Finding the Fourth Proportional to 2,862.07, 4,289.56 and 1,216.75

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Solution

The fourth proportional to 2,862.07, 4,289.56 and 1,216.75 is: 1,823.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,862.07 : 4,289.56 = 1,216.75 : x
  2. Step 2: Convert to fraction form
    2,862.07/4,289.56 = 1,216.75/x
  3. Step 3: Cross multiply
    2,862.07x = 4,289.56 × 1,216.75
  4. Step 4: Simplify right side
    2,862.07x = 5,219,322.13
  5. Step 5: Solve for x
    x = 5,219,322.13/2,862.07
  6. Step 6: Final answer
    x = 1,823.62

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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.