Home / 1,419.03-2,130.37-1,342.49

Finding the Fourth Proportional to 1,419.03, 2,130.37 and 1,342.49

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Solution

The fourth proportional to 1,419.03, 2,130.37 and 1,342.49 is: 2,015.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419.03 : 2,130.37 = 1,342.49 : x
  2. Step 2: Convert to fraction form
    1,419.03/2,130.37 = 1,342.49/x
  3. Step 3: Cross multiply
    1,419.03x = 2,130.37 × 1,342.49
  4. Step 4: Simplify right side
    1,419.03x = 2,859,986.41
  5. Step 5: Solve for x
    x = 2,859,986.41/1,419.03
  6. Step 6: Final answer
    x = 2,015.45

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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.