Home / 2,283.98-3,151.74-1,289.30

Finding the Fourth Proportional to 2,283.98, 3,151.74 and 1,289.30

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Solution

The fourth proportional to 2,283.98, 3,151.74 and 1,289.30 is: 1,779.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,283.98 : 3,151.74 = 1,289.30 : x
  2. Step 2: Convert to fraction form
    2,283.98/3,151.74 = 1,289.30/x
  3. Step 3: Cross multiply
    2,283.98x = 3,151.74 × 1,289.30
  4. Step 4: Simplify right side
    2,283.98x = 4,063,538.38
  5. Step 5: Solve for x
    x = 4,063,538.38/2,283.98
  6. Step 6: Final answer
    x = 1,779.15

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1.5x scale

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.