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Finding the Fourth Proportional to 3,065.69, 4,230.68 and 1,739.40

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Solution

The fourth proportional to 3,065.69, 4,230.68 and 1,739.40 is: 2,400.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,065.69 : 4,230.68 = 1,739.40 : x
  2. Step 2: Convert to fraction form
    3,065.69/4,230.68 = 1,739.40/x
  3. Step 3: Cross multiply
    3,065.69x = 4,230.68 × 1,739.40
  4. Step 4: Simplify right side
    3,065.69x = 7,358,836.10
  5. Step 5: Solve for x
    x = 7,358,836.10/3,065.69
  6. Step 6: Final answer
    x = 2,400.39

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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.