Home / 5,618.65-8,426.70-1,669.09

Finding the Fourth Proportional to 5,618.65, 8,426.70 and 1,669.09

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Solution

The fourth proportional to 5,618.65, 8,426.70 and 1,669.09 is: 2,503.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.65 : 8,426.70 = 1,669.09 : x
  2. Step 2: Convert to fraction form
    5,618.65/8,426.70 = 1,669.09/x
  3. Step 3: Cross multiply
    5,618.65x = 8,426.70 × 1,669.09
  4. Step 4: Simplify right side
    5,618.65x = 14,064,920.70
  5. Step 5: Solve for x
    x = 14,064,920.70/5,618.65
  6. Step 6: Final answer
    x = 2,503.26

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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.