Home / 1,758.40-2,425.38-1,426.84

Finding the Fourth Proportional to 1,758.40, 2,425.38 and 1,426.84

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Solution

The fourth proportional to 1,758.40, 2,425.38 and 1,426.84 is: 1,968.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,758.40 : 2,425.38 = 1,426.84 : x
  2. Step 2: Convert to fraction form
    1,758.40/2,425.38 = 1,426.84/x
  3. Step 3: Cross multiply
    1,758.40x = 2,425.38 × 1,426.84
  4. Step 4: Simplify right side
    1,758.40x = 3,460,629.20
  5. Step 5: Solve for x
    x = 3,460,629.20/1,758.40
  6. Step 6: Final answer
    x = 1,968.06

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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.