Home / 2,931.21-4,044.74-1,672.29

Finding the Fourth Proportional to 2,931.21, 4,044.74 and 1,672.29

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Solution

The fourth proportional to 2,931.21, 4,044.74 and 1,672.29 is: 2,307.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931.21 : 4,044.74 = 1,672.29 : x
  2. Step 2: Convert to fraction form
    2,931.21/4,044.74 = 1,672.29/x
  3. Step 3: Cross multiply
    2,931.21x = 4,044.74 × 1,672.29
  4. Step 4: Simplify right side
    2,931.21x = 6,763,969.89
  5. Step 5: Solve for x
    x = 6,763,969.89/2,931.21
  6. Step 6: Final answer
    x = 2,307.57

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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.