Home / 2,628.22-3,937.05-1,307.99

Finding the Fourth Proportional to 2,628.22, 3,937.05 and 1,307.99

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Solution

The fourth proportional to 2,628.22, 3,937.05 and 1,307.99 is: 1,959.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628.22 : 3,937.05 = 1,307.99 : x
  2. Step 2: Convert to fraction form
    2,628.22/3,937.05 = 1,307.99/x
  3. Step 3: Cross multiply
    2,628.22x = 3,937.05 × 1,307.99
  4. Step 4: Simplify right side
    2,628.22x = 5,149,617.11
  5. Step 5: Solve for x
    x = 5,149,617.11/2,628.22
  6. Step 6: Final answer
    x = 1,959.35

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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.