Home / 4,186.98-6,280.26-1,555.01

Finding the Fourth Proportional to 4,186.98, 6,280.26 and 1,555.01

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Solution

The fourth proportional to 4,186.98, 6,280.26 and 1,555.01 is: 2,332.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,186.98 : 6,280.26 = 1,555.01 : x
  2. Step 2: Convert to fraction form
    4,186.98/6,280.26 = 1,555.01/x
  3. Step 3: Cross multiply
    4,186.98x = 6,280.26 × 1,555.01
  4. Step 4: Simplify right side
    4,186.98x = 9,765,835.70
  5. Step 5: Solve for x
    x = 9,765,835.70/4,186.98
  6. Step 6: Final answer
    x = 2,332.43

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Double scale
Find fourth proportional to 4,187.98, 6,281.76 and 1,556.01
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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.