Home / 2,213.16-3,054.21-1,218.46

Finding the Fourth Proportional to 2,213.16, 3,054.21 and 1,218.46

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Solution

The fourth proportional to 2,213.16, 3,054.21 and 1,218.46 is: 1,681.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,213.16 : 3,054.21 = 1,218.46 : x
  2. Step 2: Convert to fraction form
    2,213.16/3,054.21 = 1,218.46/x
  3. Step 3: Cross multiply
    2,213.16x = 3,054.21 × 1,218.46
  4. Step 4: Simplify right side
    2,213.16x = 3,721,432.72
  5. Step 5: Solve for x
    x = 3,721,432.72/2,213.16
  6. Step 6: Final answer
    x = 1,681.50

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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.