Home / 2,212.40-3,050.76-1,582.80

Finding the Fourth Proportional to 2,212.40, 3,050.76 and 1,582.80

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Solution

The fourth proportional to 2,212.40, 3,050.76 and 1,582.80 is: 2,182.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.40 : 3,050.76 = 1,582.80 : x
  2. Step 2: Convert to fraction form
    2,212.40/3,050.76 = 1,582.80/x
  3. Step 3: Cross multiply
    2,212.40x = 3,050.76 × 1,582.80
  4. Step 4: Simplify right side
    2,212.40x = 4,828,742.93
  5. Step 5: Solve for x
    x = 4,828,742.93/2,212.40
  6. Step 6: Final answer
    x = 2,182.58

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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.