Home / 3,116.50-4,300.85-1,700.21

Finding the Fourth Proportional to 3,116.50, 4,300.85 and 1,700.21

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Solution

The fourth proportional to 3,116.50, 4,300.85 and 1,700.21 is: 2,346.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116.50 : 4,300.85 = 1,700.21 : x
  2. Step 2: Convert to fraction form
    3,116.50/4,300.85 = 1,700.21/x
  3. Step 3: Cross multiply
    3,116.50x = 4,300.85 × 1,700.21
  4. Step 4: Simplify right side
    3,116.50x = 7,312,350.30
  5. Step 5: Solve for x
    x = 7,312,350.30/3,116.50
  6. Step 6: Final answer
    x = 2,346.33

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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.