Home / 1,489.68-2,244.92-1,276.08

Finding the Fourth Proportional to 1,489.68, 2,244.92 and 1,276.08

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Solution

The fourth proportional to 1,489.68, 2,244.92 and 1,276.08 is: 1,923.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489.68 : 2,244.92 = 1,276.08 : x
  2. Step 2: Convert to fraction form
    1,489.68/2,244.92 = 1,276.08/x
  3. Step 3: Cross multiply
    1,489.68x = 2,244.92 × 1,276.08
  4. Step 4: Simplify right side
    1,489.68x = 2,864,697.51
  5. Step 5: Solve for x
    x = 2,864,697.51/1,489.68
  6. Step 6: Final answer
    x = 1,923.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.