Home / 2,955.25-4,433.64-1,311.40

Finding the Fourth Proportional to 2,955.25, 4,433.64 and 1,311.40

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Solution

The fourth proportional to 2,955.25, 4,433.64 and 1,311.40 is: 1,967.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,955.25 : 4,433.64 = 1,311.40 : x
  2. Step 2: Convert to fraction form
    2,955.25/4,433.64 = 1,311.40/x
  3. Step 3: Cross multiply
    2,955.25x = 4,433.64 × 1,311.40
  4. Step 4: Simplify right side
    2,955.25x = 5,814,275.50
  5. Step 5: Solve for x
    x = 5,814,275.50/2,955.25
  6. Step 6: Final answer
    x = 1,967.44

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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.