Home / 1,783.28-2,461.61-1,193.60

Finding the Fourth Proportional to 1,783.28, 2,461.61 and 1,193.60

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Solution

The fourth proportional to 1,783.28, 2,461.61 and 1,193.60 is: 1,647.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,783.28 : 2,461.61 = 1,193.60 : x
  2. Step 2: Convert to fraction form
    1,783.28/2,461.61 = 1,193.60/x
  3. Step 3: Cross multiply
    1,783.28x = 2,461.61 × 1,193.60
  4. Step 4: Simplify right side
    1,783.28x = 2,938,177.70
  5. Step 5: Solve for x
    x = 2,938,177.70/1,783.28
  6. Step 6: Final answer
    x = 1,647.63

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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.