Home / 2,278.81-3,141.15-2,088.13

Finding the Fourth Proportional to 2,278.81, 3,141.15 and 2,088.13

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Solution

The fourth proportional to 2,278.81, 3,141.15 and 2,088.13 is: 2,878.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,278.81 : 3,141.15 = 2,088.13 : x
  2. Step 2: Convert to fraction form
    2,278.81/3,141.15 = 2,088.13/x
  3. Step 3: Cross multiply
    2,278.81x = 3,141.15 × 2,088.13
  4. Step 4: Simplify right side
    2,278.81x = 6,559,137.37
  5. Step 5: Solve for x
    x = 6,559,137.37/2,278.81
  6. Step 6: Final answer
    x = 2,878.32

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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.