Home / 2,119.30-2,924.57-1,175.07

Finding the Fourth Proportional to 2,119.30, 2,924.57 and 1,175.07

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Solution

The fourth proportional to 2,119.30, 2,924.57 and 1,175.07 is: 1,621.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119.30 : 2,924.57 = 1,175.07 : x
  2. Step 2: Convert to fraction form
    2,119.30/2,924.57 = 1,175.07/x
  3. Step 3: Cross multiply
    2,119.30x = 2,924.57 × 1,175.07
  4. Step 4: Simplify right side
    2,119.30x = 3,436,574.47
  5. Step 5: Solve for x
    x = 3,436,574.47/2,119.30
  6. Step 6: Final answer
    x = 1,621.56

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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.