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Finding the Fourth Proportional to 3,854.60, 5,780.19 and 1,774.10

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Solution

The fourth proportional to 3,854.60, 5,780.19 and 1,774.10 is: 2,660.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,854.60 : 5,780.19 = 1,774.10 : x
  2. Step 2: Convert to fraction form
    3,854.60/5,780.19 = 1,774.10/x
  3. Step 3: Cross multiply
    3,854.60x = 5,780.19 × 1,774.10
  4. Step 4: Simplify right side
    3,854.60x = 10,254,635.08
  5. Step 5: Solve for x
    x = 10,254,635.08/3,854.60
  6. Step 6: Final answer
    x = 2,660.36

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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.