Home / 2,931.30-4,044.90-1,672.26

Finding the Fourth Proportional to 2,931.30, 4,044.90 and 1,672.26

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Solution

The fourth proportional to 2,931.30, 4,044.90 and 1,672.26 is: 2,307.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931.30 : 4,044.90 = 1,672.26 : x
  2. Step 2: Convert to fraction form
    2,931.30/4,044.90 = 1,672.26/x
  3. Step 3: Cross multiply
    2,931.30x = 4,044.90 × 1,672.26
  4. Step 4: Simplify right side
    2,931.30x = 6,764,124.47
  5. Step 5: Solve for x
    x = 6,764,124.47/2,931.30
  6. Step 6: Final answer
    x = 2,307.55

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1.5x scale

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.