Home / 2,430.32-3,353.85-1,382.39

Finding the Fourth Proportional to 2,430.32, 3,353.85 and 1,382.39

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Solution

The fourth proportional to 2,430.32, 3,353.85 and 1,382.39 is: 1,907.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,430.32 : 3,353.85 = 1,382.39 : x
  2. Step 2: Convert to fraction form
    2,430.32/3,353.85 = 1,382.39/x
  3. Step 3: Cross multiply
    2,430.32x = 3,353.85 × 1,382.39
  4. Step 4: Simplify right side
    2,430.32x = 4,636,311.93
  5. Step 5: Solve for x
    x = 4,636,311.93/2,430.32
  6. Step 6: Final answer
    x = 1,907.69

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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.