Home / 6,210.90-8,570.21-3,692.09

Finding the Fourth Proportional to 6,210.90, 8,570.21 and 3,692.09

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Solution

The fourth proportional to 6,210.90, 8,570.21 and 3,692.09 is: 5,094.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,210.90 : 8,570.21 = 3,692.09 : x
  2. Step 2: Convert to fraction form
    6,210.90/8,570.21 = 3,692.09/x
  3. Step 3: Cross multiply
    6,210.90x = 8,570.21 × 3,692.09
  4. Step 4: Simplify right side
    6,210.90x = 31,641,989.60
  5. Step 5: Solve for x
    x = 31,641,989.60/6,210.90
  6. Step 6: Final answer
    x = 5,094.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.