Home / 2,154.96-2,972.83-1,357.92

Finding the Fourth Proportional to 2,154.96, 2,972.83 and 1,357.92

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Solution

The fourth proportional to 2,154.96, 2,972.83 and 1,357.92 is: 1,873.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154.96 : 2,972.83 = 1,357.92 : x
  2. Step 2: Convert to fraction form
    2,154.96/2,972.83 = 1,357.92/x
  3. Step 3: Cross multiply
    2,154.96x = 2,972.83 × 1,357.92
  4. Step 4: Simplify right side
    2,154.96x = 4,036,865.31
  5. Step 5: Solve for x
    x = 4,036,865.31/2,154.96
  6. Step 6: Final answer
    x = 1,873.29

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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.