Home / 1,841.21-2,539.61-1,177.77

Finding the Fourth Proportional to 1,841.21, 2,539.61 and 1,177.77

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Solution

The fourth proportional to 1,841.21, 2,539.61 and 1,177.77 is: 1,624.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,841.21 : 2,539.61 = 1,177.77 : x
  2. Step 2: Convert to fraction form
    1,841.21/2,539.61 = 1,177.77/x
  3. Step 3: Cross multiply
    1,841.21x = 2,539.61 × 1,177.77
  4. Step 4: Simplify right side
    1,841.21x = 2,991,070.58
  5. Step 5: Solve for x
    x = 2,991,070.58/1,841.21
  6. Step 6: Final answer
    x = 1,624.52

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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.