Home / 2,182.68-3,011.22-1,435.68

Finding the Fourth Proportional to 2,182.68, 3,011.22 and 1,435.68

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Solution

The fourth proportional to 2,182.68, 3,011.22 and 1,435.68 is: 1,980.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,182.68 : 3,011.22 = 1,435.68 : x
  2. Step 2: Convert to fraction form
    2,182.68/3,011.22 = 1,435.68/x
  3. Step 3: Cross multiply
    2,182.68x = 3,011.22 × 1,435.68
  4. Step 4: Simplify right side
    2,182.68x = 4,323,148.33
  5. Step 5: Solve for x
    x = 4,323,148.33/2,182.68
  6. Step 6: Final answer
    x = 1,980.66

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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.