Home / 3,423.69-5,135.86-1,575.32

Finding the Fourth Proportional to 3,423.69, 5,135.86 and 1,575.32

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Solution

The fourth proportional to 3,423.69, 5,135.86 and 1,575.32 is: 2,363.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,423.69 : 5,135.86 = 1,575.32 : x
  2. Step 2: Convert to fraction form
    3,423.69/5,135.86 = 1,575.32/x
  3. Step 3: Cross multiply
    3,423.69x = 5,135.86 × 1,575.32
  4. Step 4: Simplify right side
    3,423.69x = 8,090,622.98
  5. Step 5: Solve for x
    x = 8,090,622.98/3,423.69
  6. Step 6: Final answer
    x = 2,363.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.