Home / 1,768.40-2,437.80-1,326.32

Finding the Fourth Proportional to 1,768.40, 2,437.80 and 1,326.32

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Solution

The fourth proportional to 1,768.40, 2,437.80 and 1,326.32 is: 1,828.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,768.40 : 2,437.80 = 1,326.32 : x
  2. Step 2: Convert to fraction form
    1,768.40/2,437.80 = 1,326.32/x
  3. Step 3: Cross multiply
    1,768.40x = 2,437.80 × 1,326.32
  4. Step 4: Simplify right side
    1,768.40x = 3,233,302.90
  5. Step 5: Solve for x
    x = 3,233,302.90/1,768.40
  6. Step 6: Final answer
    x = 1,828.38

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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.