Home / 2,112,367.65-2,915,068.13-1,145,497.68

Finding the Fourth Proportional to 2,112,367.65, 2,915,068.13 and 1,145,497.68

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Solution

The fourth proportional to 2,112,367.65, 2,915,068.13 and 1,145,497.68 is: 1,580,787.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,112,367.65 : 2,915,068.13 = 1,145,497.68 : x
  2. Step 2: Convert to fraction form
    2,112,367.65/2,915,068.13 = 1,145,497.68/x
  3. Step 3: Cross multiply
    2,112,367.65x = 2,915,068.13 × 1,145,497.68
  4. Step 4: Simplify right side
    2,112,367.65x = 3,339,203,795,655.38
  5. Step 5: Solve for x
    x = 3,339,203,795,655.38/2,112,367.65
  6. Step 6: Final answer
    x = 1,580,787.22

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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.