Home / 1,806.19-2,490.81-1,098.15

Finding the Fourth Proportional to 1,806.19, 2,490.81 and 1,098.15

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Solution

The fourth proportional to 1,806.19, 2,490.81 and 1,098.15 is: 1,514.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,806.19 : 2,490.81 = 1,098.15 : x
  2. Step 2: Convert to fraction form
    1,806.19/2,490.81 = 1,098.15/x
  3. Step 3: Cross multiply
    1,806.19x = 2,490.81 × 1,098.15
  4. Step 4: Simplify right side
    1,806.19x = 2,735,283.00
  5. Step 5: Solve for x
    x = 2,735,283.00/1,806.19
  6. Step 6: Final answer
    x = 1,514.40

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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.