Home / 3,435.39-5,153.28-1,126.89

Finding the Fourth Proportional to 3,435.39, 5,153.28 and 1,126.89

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Solution

The fourth proportional to 3,435.39, 5,153.28 and 1,126.89 is: 1,690.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,435.39 : 5,153.28 = 1,126.89 : x
  2. Step 2: Convert to fraction form
    3,435.39/5,153.28 = 1,126.89/x
  3. Step 3: Cross multiply
    3,435.39x = 5,153.28 × 1,126.89
  4. Step 4: Simplify right side
    3,435.39x = 5,807,179.70
  5. Step 5: Solve for x
    x = 5,807,179.70/3,435.39
  6. Step 6: Final answer
    x = 1,690.40

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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.