Home / 1,262.40-1,883.10-1,242.24

Finding the Fourth Proportional to 1,262.40, 1,883.10 and 1,242.24

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Solution

The fourth proportional to 1,262.40, 1,883.10 and 1,242.24 is: 1,853.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262.40 : 1,883.10 = 1,242.24 : x
  2. Step 2: Convert to fraction form
    1,262.40/1,883.10 = 1,242.24/x
  3. Step 3: Cross multiply
    1,262.40x = 1,883.10 × 1,242.24
  4. Step 4: Simplify right side
    1,262.40x = 2,339,262.14
  5. Step 5: Solve for x
    x = 2,339,262.14/1,262.40
  6. Step 6: Final answer
    x = 1,853.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.