Home / 2,129,721.76-2,939,076.54-1,162,913.32

Finding the Fourth Proportional to 2,129,721.76, 2,939,076.54 and 1,162,913.32

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Solution

The fourth proportional to 2,129,721.76, 2,939,076.54 and 1,162,913.32 is: 1,604,853.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129,721.76 : 2,939,076.54 = 1,162,913.32 : x
  2. Step 2: Convert to fraction form
    2,129,721.76/2,939,076.54 = 1,162,913.32/x
  3. Step 3: Cross multiply
    2,129,721.76x = 2,939,076.54 × 1,162,913.32
  4. Step 4: Simplify right side
    2,129,721.76x = 3,417,891,256,865.51
  5. Step 5: Solve for x
    x = 3,417,891,256,865.51/2,129,721.76
  6. Step 6: Final answer
    x = 1,604,853.42

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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.