Home / 2,129,682.51-2,938,939.61-1,162,809.81

Finding the Fourth Proportional to 2,129,682.51, 2,938,939.61 and 1,162,809.81

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Solution

The fourth proportional to 2,129,682.51, 2,938,939.61 and 1,162,809.81 is: 1,604,665.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129,682.51 : 2,938,939.61 = 1,162,809.81 : x
  2. Step 2: Convert to fraction form
    2,129,682.51/2,938,939.61 = 1,162,809.81/x
  3. Step 3: Cross multiply
    2,129,682.51x = 2,938,939.61 × 1,162,809.81
  4. Step 4: Simplify right side
    2,129,682.51x = 3,417,427,803,691.53
  5. Step 5: Solve for x
    x = 3,417,427,803,691.53/2,129,682.51
  6. Step 6: Final answer
    x = 1,604,665.38

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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.