Home / 2,278.01-3,145.58-1,394.10

Finding the Fourth Proportional to 2,278.01, 3,145.58 and 1,394.10

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Solution

The fourth proportional to 2,278.01, 3,145.58 and 1,394.10 is: 1,925.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,278.01 : 3,145.58 = 1,394.10 : x
  2. Step 2: Convert to fraction form
    2,278.01/3,145.58 = 1,394.10/x
  3. Step 3: Cross multiply
    2,278.01x = 3,145.58 × 1,394.10
  4. Step 4: Simplify right side
    2,278.01x = 4,385,246.11
  5. Step 5: Solve for x
    x = 4,385,246.11/2,278.01
  6. Step 6: Final answer
    x = 1,925.04

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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.