Home / 2,001.17-2,762.75-1,340.21

Finding the Fourth Proportional to 2,001.17, 2,762.75 and 1,340.21

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Solution

The fourth proportional to 2,001.17, 2,762.75 and 1,340.21 is: 1,850.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,001.17 : 2,762.75 = 1,340.21 : x
  2. Step 2: Convert to fraction form
    2,001.17/2,762.75 = 1,340.21/x
  3. Step 3: Cross multiply
    2,001.17x = 2,762.75 × 1,340.21
  4. Step 4: Simplify right side
    2,001.17x = 3,702,654.71
  5. Step 5: Solve for x
    x = 3,702,654.71/2,001.17
  6. Step 6: Final answer
    x = 1,850.25

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Half scale
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Double scale
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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.