Home / 1,935.52-2,670.56-1,138.88

Finding the Fourth Proportional to 1,935.52, 2,670.56 and 1,138.88

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Solution

The fourth proportional to 1,935.52, 2,670.56 and 1,138.88 is: 1,571.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935.52 : 2,670.56 = 1,138.88 : x
  2. Step 2: Convert to fraction form
    1,935.52/2,670.56 = 1,138.88/x
  3. Step 3: Cross multiply
    1,935.52x = 2,670.56 × 1,138.88
  4. Step 4: Simplify right side
    1,935.52x = 3,041,442.61
  5. Step 5: Solve for x
    x = 3,041,442.61/1,935.52
  6. Step 6: Final answer
    x = 1,571.38

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Half scale
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Double scale
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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.