Home / 3,116.20-4,685.10-3,051.40

Finding the Fourth Proportional to 3,116.20, 4,685.10 and 3,051.40

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Solution

The fourth proportional to 3,116.20, 4,685.10 and 3,051.40 is: 4,587.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116.20 : 4,685.10 = 3,051.40 : x
  2. Step 2: Convert to fraction form
    3,116.20/4,685.10 = 3,051.40/x
  3. Step 3: Cross multiply
    3,116.20x = 4,685.10 × 3,051.40
  4. Step 4: Simplify right side
    3,116.20x = 14,296,114.14
  5. Step 5: Solve for x
    x = 14,296,114.14/3,116.20
  6. Step 6: Final answer
    x = 4,587.68

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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.