Home / 3,417.85-5,124.34-1,636.87

Finding the Fourth Proportional to 3,417.85, 5,124.34 and 1,636.87

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Solution

The fourth proportional to 3,417.85, 5,124.34 and 1,636.87 is: 2,454.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,417.85 : 5,124.34 = 1,636.87 : x
  2. Step 2: Convert to fraction form
    3,417.85/5,124.34 = 1,636.87/x
  3. Step 3: Cross multiply
    3,417.85x = 5,124.34 × 1,636.87
  4. Step 4: Simplify right side
    3,417.85x = 8,387,867.65
  5. Step 5: Solve for x
    x = 8,387,867.65/3,417.85
  6. Step 6: Final answer
    x = 2,454.14

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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.