Home / 2,383.79-3,289.58-1,307.07

Finding the Fourth Proportional to 2,383.79, 3,289.58 and 1,307.07

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Solution

The fourth proportional to 2,383.79, 3,289.58 and 1,307.07 is: 1,803.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,383.79 : 3,289.58 = 1,307.07 : x
  2. Step 2: Convert to fraction form
    2,383.79/3,289.58 = 1,307.07/x
  3. Step 3: Cross multiply
    2,383.79x = 3,289.58 × 1,307.07
  4. Step 4: Simplify right side
    2,383.79x = 4,299,704.80
  5. Step 5: Solve for x
    x = 4,299,704.80/2,383.79
  6. Step 6: Final answer
    x = 1,803.73

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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.