Home / 2,674.41-3,690.45-1,555.17

Finding the Fourth Proportional to 2,674.41, 3,690.45 and 1,555.17

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Solution

The fourth proportional to 2,674.41, 3,690.45 and 1,555.17 is: 2,146.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,674.41 : 3,690.45 = 1,555.17 : x
  2. Step 2: Convert to fraction form
    2,674.41/3,690.45 = 1,555.17/x
  3. Step 3: Cross multiply
    2,674.41x = 3,690.45 × 1,555.17
  4. Step 4: Simplify right side
    2,674.41x = 5,739,277.13
  5. Step 5: Solve for x
    x = 5,739,277.13/2,674.41
  6. Step 6: Final answer
    x = 2,146.00

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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.