Home / 1,968.30-2,934.80-1,897.16

Finding the Fourth Proportional to 1,968.30, 2,934.80 and 1,897.16

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Solution

The fourth proportional to 1,968.30, 2,934.80 and 1,897.16 is: 2,828.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,968.30 : 2,934.80 = 1,897.16 : x
  2. Step 2: Convert to fraction form
    1,968.30/2,934.80 = 1,897.16/x
  3. Step 3: Cross multiply
    1,968.30x = 2,934.80 × 1,897.16
  4. Step 4: Simplify right side
    1,968.30x = 5,567,768.12
  5. Step 5: Solve for x
    x = 5,567,768.12/1,968.30
  6. Step 6: Final answer
    x = 2,828.72

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1.5x scale

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.