Home / 1,806.78-2,495.70-1,335.63

Finding the Fourth Proportional to 1,806.78, 2,495.70 and 1,335.63

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Solution

The fourth proportional to 1,806.78, 2,495.70 and 1,335.63 is: 1,844.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,806.78 : 2,495.70 = 1,335.63 : x
  2. Step 2: Convert to fraction form
    1,806.78/2,495.70 = 1,335.63/x
  3. Step 3: Cross multiply
    1,806.78x = 2,495.70 × 1,335.63
  4. Step 4: Simplify right side
    1,806.78x = 3,333,331.79
  5. Step 5: Solve for x
    x = 3,333,331.79/1,806.78
  6. Step 6: Final answer
    x = 1,844.90

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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.