Home / 1,770.12-2,654.80-674.08

Finding the Fourth Proportional to 1,770.12, 2,654.80 and 674.08

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Solution

The fourth proportional to 1,770.12, 2,654.80 and 674.08 is: 1,010.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,770.12 : 2,654.80 = 674.08 : x
  2. Step 2: Convert to fraction form
    1,770.12/2,654.80 = 674.08/x
  3. Step 3: Cross multiply
    1,770.12x = 2,654.80 × 674.08
  4. Step 4: Simplify right side
    1,770.12x = 1,789,547.58
  5. Step 5: Solve for x
    x = 1,789,547.58/1,770.12
  6. Step 6: Final answer
    x = 1,010.98

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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.