Home / 2,856.06-3,941.19-1,808.46

Finding the Fourth Proportional to 2,856.06, 3,941.19 and 1,808.46

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Solution

The fourth proportional to 2,856.06, 3,941.19 and 1,808.46 is: 2,495.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,856.06 : 3,941.19 = 1,808.46 : x
  2. Step 2: Convert to fraction form
    2,856.06/3,941.19 = 1,808.46/x
  3. Step 3: Cross multiply
    2,856.06x = 3,941.19 × 1,808.46
  4. Step 4: Simplify right side
    2,856.06x = 7,127,484.47
  5. Step 5: Solve for x
    x = 7,127,484.47/2,856.06
  6. Step 6: Final answer
    x = 2,495.57

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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.