Home / 1,534.34-2,290.39-1,420.14

Finding the Fourth Proportional to 1,534.34, 2,290.39 and 1,420.14

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Solution

The fourth proportional to 1,534.34, 2,290.39 and 1,420.14 is: 2,119.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,534.34 : 2,290.39 = 1,420.14 : x
  2. Step 2: Convert to fraction form
    1,534.34/2,290.39 = 1,420.14/x
  3. Step 3: Cross multiply
    1,534.34x = 2,290.39 × 1,420.14
  4. Step 4: Simplify right side
    1,534.34x = 3,252,667.35
  5. Step 5: Solve for x
    x = 3,252,667.35/1,534.34
  6. Step 6: Final answer
    x = 2,119.91

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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.