Home / 2,931.18-4,045.04-1,604.89

Finding the Fourth Proportional to 2,931.18, 4,045.04 and 1,604.89

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Solution

The fourth proportional to 2,931.18, 4,045.04 and 1,604.89 is: 2,214.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931.18 : 4,045.04 = 1,604.89 : x
  2. Step 2: Convert to fraction form
    2,931.18/4,045.04 = 1,604.89/x
  3. Step 3: Cross multiply
    2,931.18x = 4,045.04 × 1,604.89
  4. Step 4: Simplify right side
    2,931.18x = 6,491,844.25
  5. Step 5: Solve for x
    x = 6,491,844.25/2,931.18
  6. Step 6: Final answer
    x = 2,214.75

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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.