Home / 5,238.48-7,858.16-1,490.24

Finding the Fourth Proportional to 5,238.48, 7,858.16 and 1,490.24

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Solution

The fourth proportional to 5,238.48, 7,858.16 and 1,490.24 is: 2,235.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,238.48 : 7,858.16 = 1,490.24 : x
  2. Step 2: Convert to fraction form
    5,238.48/7,858.16 = 1,490.24/x
  3. Step 3: Cross multiply
    5,238.48x = 7,858.16 × 1,490.24
  4. Step 4: Simplify right side
    5,238.48x = 11,710,544.36
  5. Step 5: Solve for x
    x = 11,710,544.36/5,238.48
  6. Step 6: Final answer
    x = 2,235.49

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.