Home / 2,307.85-3,184.79-1,259.91

Finding the Fourth Proportional to 2,307.85, 3,184.79 and 1,259.91

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Solution

The fourth proportional to 2,307.85, 3,184.79 and 1,259.91 is: 1,738.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,307.85 : 3,184.79 = 1,259.91 : x
  2. Step 2: Convert to fraction form
    2,307.85/3,184.79 = 1,259.91/x
  3. Step 3: Cross multiply
    2,307.85x = 3,184.79 × 1,259.91
  4. Step 4: Simplify right side
    2,307.85x = 4,012,542.47
  5. Step 5: Solve for x
    x = 4,012,542.47/2,307.85
  6. Step 6: Final answer
    x = 1,738.65

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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.