Home / 2,307.22-3,183.77-1,312.47

Finding the Fourth Proportional to 2,307.22, 3,183.77 and 1,312.47

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Solution

The fourth proportional to 2,307.22, 3,183.77 and 1,312.47 is: 1,811.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,307.22 : 3,183.77 = 1,312.47 : x
  2. Step 2: Convert to fraction form
    2,307.22/3,183.77 = 1,312.47/x
  3. Step 3: Cross multiply
    2,307.22x = 3,183.77 × 1,312.47
  4. Step 4: Simplify right side
    2,307.22x = 4,178,605.89
  5. Step 5: Solve for x
    x = 4,178,605.89/2,307.22
  6. Step 6: Final answer
    x = 1,811.10

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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.