Home / 1,490.19-2,054.07-1,174.93

Finding the Fourth Proportional to 1,490.19, 2,054.07 and 1,174.93

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Solution

The fourth proportional to 1,490.19, 2,054.07 and 1,174.93 is: 1,619.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490.19 : 2,054.07 = 1,174.93 : x
  2. Step 2: Convert to fraction form
    1,490.19/2,054.07 = 1,174.93/x
  3. Step 3: Cross multiply
    1,490.19x = 2,054.07 × 1,174.93
  4. Step 4: Simplify right side
    1,490.19x = 2,413,388.47
  5. Step 5: Solve for x
    x = 2,413,388.47/1,490.19
  6. Step 6: Final answer
    x = 1,619.52

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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.