Home / 1,770.45-2,441.19-1,271.49

Finding the Fourth Proportional to 1,770.45, 2,441.19 and 1,271.49

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Solution

The fourth proportional to 1,770.45, 2,441.19 and 1,271.49 is: 1,753.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,770.45 : 2,441.19 = 1,271.49 : x
  2. Step 2: Convert to fraction form
    1,770.45/2,441.19 = 1,271.49/x
  3. Step 3: Cross multiply
    1,770.45x = 2,441.19 × 1,271.49
  4. Step 4: Simplify right side
    1,770.45x = 3,103,948.67
  5. Step 5: Solve for x
    x = 3,103,948.67/1,770.45
  6. Step 6: Final answer
    x = 1,753.20

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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.