Home / 1,929.19-2,898.54-1,236.16

Finding the Fourth Proportional to 1,929.19, 2,898.54 and 1,236.16

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Solution

The fourth proportional to 1,929.19, 2,898.54 and 1,236.16 is: 1,857.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929.19 : 2,898.54 = 1,236.16 : x
  2. Step 2: Convert to fraction form
    1,929.19/2,898.54 = 1,236.16/x
  3. Step 3: Cross multiply
    1,929.19x = 2,898.54 × 1,236.16
  4. Step 4: Simplify right side
    1,929.19x = 3,583,059.21
  5. Step 5: Solve for x
    x = 3,583,059.21/1,929.19
  6. Step 6: Final answer
    x = 1,857.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.