Home / 2,289.45-3,159.60-1,728.93

Finding the Fourth Proportional to 2,289.45, 3,159.60 and 1,728.93

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Solution

The fourth proportional to 2,289.45, 3,159.60 and 1,728.93 is: 2,386.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289.45 : 3,159.60 = 1,728.93 : x
  2. Step 2: Convert to fraction form
    2,289.45/3,159.60 = 1,728.93/x
  3. Step 3: Cross multiply
    2,289.45x = 3,159.60 × 1,728.93
  4. Step 4: Simplify right side
    2,289.45x = 5,462,727.23
  5. Step 5: Solve for x
    x = 5,462,727.23/2,289.45
  6. Step 6: Final answer
    x = 2,386.04

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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.