Home / 1,541.96-2,128.60-983.19

Finding the Fourth Proportional to 1,541.96, 2,128.60 and 983.19

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Solution

The fourth proportional to 1,541.96, 2,128.60 and 983.19 is: 1,357.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,541.96 : 2,128.60 = 983.19 : x
  2. Step 2: Convert to fraction form
    1,541.96/2,128.60 = 983.19/x
  3. Step 3: Cross multiply
    1,541.96x = 2,128.60 × 983.19
  4. Step 4: Simplify right side
    1,541.96x = 2,092,818.23
  5. Step 5: Solve for x
    x = 2,092,818.23/1,541.96
  6. Step 6: Final answer
    x = 1,357.25

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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.