Home / 5,640.20-8,425.70-4,066.77

Finding the Fourth Proportional to 5,640.20, 8,425.70 and 4,066.77

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Solution

The fourth proportional to 5,640.20, 8,425.70 and 4,066.77 is: 6,075.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,640.20 : 8,425.70 = 4,066.77 : x
  2. Step 2: Convert to fraction form
    5,640.20/8,425.70 = 4,066.77/x
  3. Step 3: Cross multiply
    5,640.20x = 8,425.70 × 4,066.77
  4. Step 4: Simplify right side
    5,640.20x = 34,265,394.16
  5. Step 5: Solve for x
    x = 34,265,394.16/5,640.20
  6. Step 6: Final answer
    x = 6,075.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.