Home / 2,107.30-3,156.39-1,374.65

Finding the Fourth Proportional to 2,107.30, 3,156.39 and 1,374.65

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Solution

The fourth proportional to 2,107.30, 3,156.39 and 1,374.65 is: 2,059.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,107.30 : 3,156.39 = 1,374.65 : x
  2. Step 2: Convert to fraction form
    2,107.30/3,156.39 = 1,374.65/x
  3. Step 3: Cross multiply
    2,107.30x = 3,156.39 × 1,374.65
  4. Step 4: Simplify right side
    2,107.30x = 4,338,931.51
  5. Step 5: Solve for x
    x = 4,338,931.51/2,107.30
  6. Step 6: Final answer
    x = 2,059.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.