Home / 5,243.07-7,862.72-1,779.51

Finding the Fourth Proportional to 5,243.07, 7,862.72 and 1,779.51

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Solution

The fourth proportional to 5,243.07, 7,862.72 and 1,779.51 is: 2,668.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,243.07 : 7,862.72 = 1,779.51 : x
  2. Step 2: Convert to fraction form
    5,243.07/7,862.72 = 1,779.51/x
  3. Step 3: Cross multiply
    5,243.07x = 7,862.72 × 1,779.51
  4. Step 4: Simplify right side
    5,243.07x = 13,991,779.97
  5. Step 5: Solve for x
    x = 13,991,779.97/5,243.07
  6. Step 6: Final answer
    x = 2,668.62

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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.