Home / 2,148.96-2,965.89-1,205.13

Finding the Fourth Proportional to 2,148.96, 2,965.89 and 1,205.13

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Solution

The fourth proportional to 2,148.96, 2,965.89 and 1,205.13 is: 1,663.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,148.96 : 2,965.89 = 1,205.13 : x
  2. Step 2: Convert to fraction form
    2,148.96/2,965.89 = 1,205.13/x
  3. Step 3: Cross multiply
    2,148.96x = 2,965.89 × 1,205.13
  4. Step 4: Simplify right side
    2,148.96x = 3,574,278.58
  5. Step 5: Solve for x
    x = 3,574,278.58/2,148.96
  6. Step 6: Final answer
    x = 1,663.26

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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.