Home / 1,770.40-2,441.80-1,140.99

Finding the Fourth Proportional to 1,770.40, 2,441.80 and 1,140.99

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Solution

The fourth proportional to 1,770.40, 2,441.80 and 1,140.99 is: 1,573.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,770.40 : 2,441.80 = 1,140.99 : x
  2. Step 2: Convert to fraction form
    1,770.40/2,441.80 = 1,140.99/x
  3. Step 3: Cross multiply
    1,770.40x = 2,441.80 × 1,140.99
  4. Step 4: Simplify right side
    1,770.40x = 2,786,069.38
  5. Step 5: Solve for x
    x = 2,786,069.38/1,770.40
  6. Step 6: Final answer
    x = 1,573.69

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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.