Home / 2,017.19-2,781.72-1,230.77

Finding the Fourth Proportional to 2,017.19, 2,781.72 and 1,230.77

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Solution

The fourth proportional to 2,017.19, 2,781.72 and 1,230.77 is: 1,697.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,017.19 : 2,781.72 = 1,230.77 : x
  2. Step 2: Convert to fraction form
    2,017.19/2,781.72 = 1,230.77/x
  3. Step 3: Cross multiply
    2,017.19x = 2,781.72 × 1,230.77
  4. Step 4: Simplify right side
    2,017.19x = 3,423,643.62
  5. Step 5: Solve for x
    x = 3,423,643.62/2,017.19
  6. Step 6: Final answer
    x = 1,697.24

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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.