Home / 2,190,134.51-3,022,446.56-1,210,136.69

Finding the Fourth Proportional to 2,190,134.51, 3,022,446.56 and 1,210,136.69

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Solution

The fourth proportional to 2,190,134.51, 3,022,446.56 and 1,210,136.69 is: 1,670,022.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190,134.51 : 3,022,446.56 = 1,210,136.69 : x
  2. Step 2: Convert to fraction form
    2,190,134.51/3,022,446.56 = 1,210,136.69/x
  3. Step 3: Cross multiply
    2,190,134.51x = 3,022,446.56 × 1,210,136.69
  4. Step 4: Simplify right side
    2,190,134.51x = 3,657,573,475,820.29
  5. Step 5: Solve for x
    x = 3,657,573,475,820.29/2,190,134.51
  6. Step 6: Final answer
    x = 1,670,022.30

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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.