Home / 3,197.07-4,412.18-1,780.75

Finding the Fourth Proportional to 3,197.07, 4,412.18 and 1,780.75

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Solution

The fourth proportional to 3,197.07, 4,412.18 and 1,780.75 is: 2,457.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,197.07 : 4,412.18 = 1,780.75 : x
  2. Step 2: Convert to fraction form
    3,197.07/4,412.18 = 1,780.75/x
  3. Step 3: Cross multiply
    3,197.07x = 4,412.18 × 1,780.75
  4. Step 4: Simplify right side
    3,197.07x = 7,856,989.54
  5. Step 5: Solve for x
    x = 7,856,989.54/3,197.07
  6. Step 6: Final answer
    x = 2,457.56

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Find fourth proportional to 1,598.54, 2,206.09 and 890.38
Half scale
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Double scale
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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.