Home / 1,939.26-2,678.36-1,502.45

Finding the Fourth Proportional to 1,939.26, 2,678.36 and 1,502.45

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Solution

The fourth proportional to 1,939.26, 2,678.36 and 1,502.45 is: 2,075.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.26 : 2,678.36 = 1,502.45 : x
  2. Step 2: Convert to fraction form
    1,939.26/2,678.36 = 1,502.45/x
  3. Step 3: Cross multiply
    1,939.26x = 2,678.36 × 1,502.45
  4. Step 4: Simplify right side
    1,939.26x = 4,024,081.08
  5. Step 5: Solve for x
    x = 4,024,081.08/1,939.26
  6. Step 6: Final answer
    x = 2,075.06

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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.