Home / 2,015.02-2,780.91-1,175.65

Finding the Fourth Proportional to 2,015.02, 2,780.91 and 1,175.65

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Solution

The fourth proportional to 2,015.02, 2,780.91 and 1,175.65 is: 1,622.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015.02 : 2,780.91 = 1,175.65 : x
  2. Step 2: Convert to fraction form
    2,015.02/2,780.91 = 1,175.65/x
  3. Step 3: Cross multiply
    2,015.02x = 2,780.91 × 1,175.65
  4. Step 4: Simplify right side
    2,015.02x = 3,269,376.84
  5. Step 5: Solve for x
    x = 3,269,376.84/2,015.02
  6. Step 6: Final answer
    x = 1,622.50

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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.