Home / 1,342.24-1,847.74-1,154.64

Finding the Fourth Proportional to 1,342.24, 1,847.74 and 1,154.64

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Solution

The fourth proportional to 1,342.24, 1,847.74 and 1,154.64 is: 1,589.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,342.24 : 1,847.74 = 1,154.64 : x
  2. Step 2: Convert to fraction form
    1,342.24/1,847.74 = 1,154.64/x
  3. Step 3: Cross multiply
    1,342.24x = 1,847.74 × 1,154.64
  4. Step 4: Simplify right side
    1,342.24x = 2,133,474.51
  5. Step 5: Solve for x
    x = 2,133,474.51/1,342.24
  6. Step 6: Final answer
    x = 1,589.49

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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.