Home / 1,969.04-2,714.28-1,338.32

Finding the Fourth Proportional to 1,969.04, 2,714.28 and 1,338.32

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Solution

The fourth proportional to 1,969.04, 2,714.28 and 1,338.32 is: 1,844.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,969.04 : 2,714.28 = 1,338.32 : x
  2. Step 2: Convert to fraction form
    1,969.04/2,714.28 = 1,338.32/x
  3. Step 3: Cross multiply
    1,969.04x = 2,714.28 × 1,338.32
  4. Step 4: Simplify right side
    1,969.04x = 3,632,575.21
  5. Step 5: Solve for x
    x = 3,632,575.21/1,969.04
  6. Step 6: Final answer
    x = 1,844.85

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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.