Home / 2,378.09-3,565.62-1,143.05

Finding the Fourth Proportional to 2,378.09, 3,565.62 and 1,143.05

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Solution

The fourth proportional to 2,378.09, 3,565.62 and 1,143.05 is: 1,713.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,378.09 : 3,565.62 = 1,143.05 : x
  2. Step 2: Convert to fraction form
    2,378.09/3,565.62 = 1,143.05/x
  3. Step 3: Cross multiply
    2,378.09x = 3,565.62 × 1,143.05
  4. Step 4: Simplify right side
    2,378.09x = 4,075,664.11
  5. Step 5: Solve for x
    x = 4,075,664.11/2,378.09
  6. Step 6: Final answer
    x = 1,713.84

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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.