Home / 2,284.29-3,152.28-1,289.70

Finding the Fourth Proportional to 2,284.29, 3,152.28 and 1,289.70

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Solution

The fourth proportional to 2,284.29, 3,152.28 and 1,289.70 is: 1,779.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,284.29 : 3,152.28 = 1,289.70 : x
  2. Step 2: Convert to fraction form
    2,284.29/3,152.28 = 1,289.70/x
  3. Step 3: Cross multiply
    2,284.29x = 3,152.28 × 1,289.70
  4. Step 4: Simplify right side
    2,284.29x = 4,065,495.52
  5. Step 5: Solve for x
    x = 4,065,495.52/2,284.29
  6. Step 6: Final answer
    x = 1,779.76

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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.