Home / 1,880.81-2,596.19-1,218.17

Finding the Fourth Proportional to 1,880.81, 2,596.19 and 1,218.17

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Solution

The fourth proportional to 1,880.81, 2,596.19 and 1,218.17 is: 1,681.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,880.81 : 2,596.19 = 1,218.17 : x
  2. Step 2: Convert to fraction form
    1,880.81/2,596.19 = 1,218.17/x
  3. Step 3: Cross multiply
    1,880.81x = 2,596.19 × 1,218.17
  4. Step 4: Simplify right side
    1,880.81x = 3,162,600.77
  5. Step 5: Solve for x
    x = 3,162,600.77/1,880.81
  6. Step 6: Final answer
    x = 1,681.51

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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.