Home / 2,921.14-4,378.06-2,302.40

Finding the Fourth Proportional to 2,921.14, 4,378.06 and 2,302.40

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Solution

The fourth proportional to 2,921.14, 4,378.06 and 2,302.40 is: 3,450.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.14 : 4,378.06 = 2,302.40 : x
  2. Step 2: Convert to fraction form
    2,921.14/4,378.06 = 2,302.40/x
  3. Step 3: Cross multiply
    2,921.14x = 4,378.06 × 2,302.40
  4. Step 4: Simplify right side
    2,921.14x = 10,080,045.34
  5. Step 5: Solve for x
    x = 10,080,045.34/2,921.14
  6. Step 6: Final answer
    x = 3,450.72

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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.