Home / 2,308.19-3,184.11-1,423.40

Finding the Fourth Proportional to 2,308.19, 3,184.11 and 1,423.40

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Solution

The fourth proportional to 2,308.19, 3,184.11 and 1,423.40 is: 1,963.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,308.19 : 3,184.11 = 1,423.40 : x
  2. Step 2: Convert to fraction form
    2,308.19/3,184.11 = 1,423.40/x
  3. Step 3: Cross multiply
    2,308.19x = 3,184.11 × 1,423.40
  4. Step 4: Simplify right side
    2,308.19x = 4,532,246.25
  5. Step 5: Solve for x
    x = 4,532,246.25/2,308.19
  6. Step 6: Final answer
    x = 1,963.55

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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.