Home / 5,389.79-8,084.69-1,692.35

Finding the Fourth Proportional to 5,389.79, 8,084.69 and 1,692.35

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Solution

The fourth proportional to 5,389.79, 8,084.69 and 1,692.35 is: 2,538.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.79 : 8,084.69 = 1,692.35 : x
  2. Step 2: Convert to fraction form
    5,389.79/8,084.69 = 1,692.35/x
  3. Step 3: Cross multiply
    5,389.79x = 8,084.69 × 1,692.35
  4. Step 4: Simplify right side
    5,389.79x = 13,682,088.93
  5. Step 5: Solve for x
    x = 13,682,088.93/5,389.79
  6. Step 6: Final answer
    x = 2,538.52

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Similar ratio
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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.