Home / 5,692.20-8,538.30-4,720.20

Finding the Fourth Proportional to 5,692.20, 8,538.30 and 4,720.20

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Solution

The fourth proportional to 5,692.20, 8,538.30 and 4,720.20 is: 7,080.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,692.20 : 8,538.30 = 4,720.20 : x
  2. Step 2: Convert to fraction form
    5,692.20/8,538.30 = 4,720.20/x
  3. Step 3: Cross multiply
    5,692.20x = 8,538.30 × 4,720.20
  4. Step 4: Simplify right side
    5,692.20x = 40,302,483.66
  5. Step 5: Solve for x
    x = 40,302,483.66/5,692.20
  6. Step 6: Final answer
    x = 7,080.30

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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.