Home / 1,627.70-2,246.23-881.66

Finding the Fourth Proportional to 1,627.70, 2,246.23 and 881.66

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Solution

The fourth proportional to 1,627.70, 2,246.23 and 881.66 is: 1,216.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,627.70 : 2,246.23 = 881.66 : x
  2. Step 2: Convert to fraction form
    1,627.70/2,246.23 = 881.66/x
  3. Step 3: Cross multiply
    1,627.70x = 2,246.23 × 881.66
  4. Step 4: Simplify right side
    1,627.70x = 1,980,412.90
  5. Step 5: Solve for x
    x = 1,980,412.90/1,627.70
  6. Step 6: Final answer
    x = 1,216.69

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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.