Home / 1,801.12-2,485.66-1,358.24

Finding the Fourth Proportional to 1,801.12, 2,485.66 and 1,358.24

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Solution

The fourth proportional to 1,801.12, 2,485.66 and 1,358.24 is: 1,874.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,801.12 : 2,485.66 = 1,358.24 : x
  2. Step 2: Convert to fraction form
    1,801.12/2,485.66 = 1,358.24/x
  3. Step 3: Cross multiply
    1,801.12x = 2,485.66 × 1,358.24
  4. Step 4: Simplify right side
    1,801.12x = 3,376,122.84
  5. Step 5: Solve for x
    x = 3,376,122.84/1,801.12
  6. Step 6: Final answer
    x = 1,874.46

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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.