Home / 1,346.49-1,853.86-1,149.21

Finding the Fourth Proportional to 1,346.49, 1,853.86 and 1,149.21

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Solution

The fourth proportional to 1,346.49, 1,853.86 and 1,149.21 is: 1,582.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,346.49 : 1,853.86 = 1,149.21 : x
  2. Step 2: Convert to fraction form
    1,346.49/1,853.86 = 1,149.21/x
  3. Step 3: Cross multiply
    1,346.49x = 1,853.86 × 1,149.21
  4. Step 4: Simplify right side
    1,346.49x = 2,130,474.45
  5. Step 5: Solve for x
    x = 2,130,474.45/1,346.49
  6. Step 6: Final answer
    x = 1,582.24

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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.