Home / 5,420.16-8,110.80-4,692.24

Finding the Fourth Proportional to 5,420.16, 8,110.80 and 4,692.24

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Solution

The fourth proportional to 5,420.16, 8,110.80 and 4,692.24 is: 7,021.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,420.16 : 8,110.80 = 4,692.24 : x
  2. Step 2: Convert to fraction form
    5,420.16/8,110.80 = 4,692.24/x
  3. Step 3: Cross multiply
    5,420.16x = 8,110.80 × 4,692.24
  4. Step 4: Simplify right side
    5,420.16x = 38,057,820.19
  5. Step 5: Solve for x
    x = 38,057,820.19/5,420.16
  6. Step 6: Final answer
    x = 7,021.53

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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.