Home / 5,426.26-8,139.48-1,916.18

Finding the Fourth Proportional to 5,426.26, 8,139.48 and 1,916.18

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Solution

The fourth proportional to 5,426.26, 8,139.48 and 1,916.18 is: 2,874.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,426.26 : 8,139.48 = 1,916.18 : x
  2. Step 2: Convert to fraction form
    5,426.26/8,139.48 = 1,916.18/x
  3. Step 3: Cross multiply
    5,426.26x = 8,139.48 × 1,916.18
  4. Step 4: Simplify right side
    5,426.26x = 15,596,668.09
  5. Step 5: Solve for x
    x = 15,596,668.09/5,426.26
  6. Step 6: Final answer
    x = 2,874.30

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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.