Home / 2,221.51-3,065.70-1,337.53

Finding the Fourth Proportional to 2,221.51, 3,065.70 and 1,337.53

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Solution

The fourth proportional to 2,221.51, 3,065.70 and 1,337.53 is: 1,845.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.51 : 3,065.70 = 1,337.53 : x
  2. Step 2: Convert to fraction form
    2,221.51/3,065.70 = 1,337.53/x
  3. Step 3: Cross multiply
    2,221.51x = 3,065.70 × 1,337.53
  4. Step 4: Simplify right side
    2,221.51x = 4,100,465.72
  5. Step 5: Solve for x
    x = 4,100,465.72/2,221.51
  6. Step 6: Final answer
    x = 1,845.80

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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.