Home / 1,817.02-2,508.96-1,188.10

Finding the Fourth Proportional to 1,817.02, 2,508.96 and 1,188.10

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Solution

The fourth proportional to 1,817.02, 2,508.96 and 1,188.10 is: 1,640.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,817.02 : 2,508.96 = 1,188.10 : x
  2. Step 2: Convert to fraction form
    1,817.02/2,508.96 = 1,188.10/x
  3. Step 3: Cross multiply
    1,817.02x = 2,508.96 × 1,188.10
  4. Step 4: Simplify right side
    1,817.02x = 2,980,895.38
  5. Step 5: Solve for x
    x = 2,980,895.38/1,817.02
  6. Step 6: Final answer
    x = 1,640.54

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Half 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.