Home / 2,111,359.68-2,915,023.68-1,387,491.84

Finding the Fourth Proportional to 2,111,359.68, 2,915,023.68 and 1,387,491.84

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Solution

The fourth proportional to 2,111,359.68, 2,915,023.68 and 1,387,491.84 is: 1,915,624.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,111,359.68 : 2,915,023.68 = 1,387,491.84 : x
  2. Step 2: Convert to fraction form
    2,111,359.68/2,915,023.68 = 1,387,491.84/x
  3. Step 3: Cross multiply
    2,111,359.68x = 2,915,023.68 × 1,387,491.84
  4. Step 4: Simplify right side
    2,111,359.68x = 4,044,571,569,406.77
  5. Step 5: Solve for x
    x = 4,044,571,569,406.77/2,111,359.68
  6. Step 6: Final answer
    x = 1,915,624.14

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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.