Home / 1,853.60-2,557.36-1,107.68

Finding the Fourth Proportional to 1,853.60, 2,557.36 and 1,107.68

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Solution

The fourth proportional to 1,853.60, 2,557.36 and 1,107.68 is: 1,528.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,853.60 : 2,557.36 = 1,107.68 : x
  2. Step 2: Convert to fraction form
    1,853.60/2,557.36 = 1,107.68/x
  3. Step 3: Cross multiply
    1,853.60x = 2,557.36 × 1,107.68
  4. Step 4: Simplify right side
    1,853.60x = 2,832,736.52
  5. Step 5: Solve for x
    x = 2,832,736.52/1,853.60
  6. Step 6: Final answer
    x = 1,528.24

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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.