Home / 2,931.19-4,045.01-1,604.88

Finding the Fourth Proportional to 2,931.19, 4,045.01 and 1,604.88

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Solution

The fourth proportional to 2,931.19, 4,045.01 and 1,604.88 is: 2,214.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931.19 : 4,045.01 = 1,604.88 : x
  2. Step 2: Convert to fraction form
    2,931.19/4,045.01 = 1,604.88/x
  3. Step 3: Cross multiply
    2,931.19x = 4,045.01 × 1,604.88
  4. Step 4: Simplify right side
    2,931.19x = 6,491,755.65
  5. Step 5: Solve for x
    x = 6,491,755.65/2,931.19
  6. Step 6: Final answer
    x = 2,214.72

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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.