Home / 2,121,976.81-2,928,328.34-1,155,114.34

Finding the Fourth Proportional to 2,121,976.81, 2,928,328.34 and 1,155,114.34

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Solution

The fourth proportional to 2,121,976.81, 2,928,328.34 and 1,155,114.34 is: 1,594,057.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121,976.81 : 2,928,328.34 = 1,155,114.34 : x
  2. Step 2: Convert to fraction form
    2,121,976.81/2,928,328.34 = 1,155,114.34/x
  3. Step 3: Cross multiply
    2,121,976.81x = 2,928,328.34 × 1,155,114.34
  4. Step 4: Simplify right side
    2,121,976.81x = 3,382,554,044,666.00
  5. Step 5: Solve for x
    x = 3,382,554,044,666.00/2,121,976.81
  6. Step 6: Final answer
    x = 1,594,057.97

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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.