Home / 2,779.74-4,167.45-1,392.37

Finding the Fourth Proportional to 2,779.74, 4,167.45 and 1,392.37

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Solution

The fourth proportional to 2,779.74, 4,167.45 and 1,392.37 is: 2,087.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,779.74 : 4,167.45 = 1,392.37 : x
  2. Step 2: Convert to fraction form
    2,779.74/4,167.45 = 1,392.37/x
  3. Step 3: Cross multiply
    2,779.74x = 4,167.45 × 1,392.37
  4. Step 4: Simplify right side
    2,779.74x = 5,802,632.36
  5. Step 5: Solve for x
    x = 5,802,632.36/2,779.74
  6. Step 6: Final answer
    x = 2,087.47

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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.