Home / 2,190,133.51-3,022,445.18-1,210,135.69

Finding the Fourth Proportional to 2,190,133.51, 3,022,445.18 and 1,210,135.69

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Solution

The fourth proportional to 2,190,133.51, 3,022,445.18 and 1,210,135.69 is: 1,670,020.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190,133.51 : 3,022,445.18 = 1,210,135.69 : x
  2. Step 2: Convert to fraction form
    2,190,133.51/3,022,445.18 = 1,210,135.69/x
  3. Step 3: Cross multiply
    2,190,133.51x = 3,022,445.18 × 1,210,135.69
  4. Step 4: Simplify right side
    2,190,133.51x = 3,657,568,780,381.55
  5. Step 5: Solve for x
    x = 3,657,568,780,381.55/2,190,133.51
  6. Step 6: Final answer
    x = 1,670,020.92

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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.