Home / 2,210.90-3,316.35-2,113.70

Finding the Fourth Proportional to 2,210.90, 3,316.35 and 2,113.70

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Solution

The fourth proportional to 2,210.90, 3,316.35 and 2,113.70 is: 3,170.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,210.90 : 3,316.35 = 2,113.70 : x
  2. Step 2: Convert to fraction form
    2,210.90/3,316.35 = 2,113.70/x
  3. Step 3: Cross multiply
    2,210.90x = 3,316.35 × 2,113.70
  4. Step 4: Simplify right side
    2,210.90x = 7,009,769.00
  5. Step 5: Solve for x
    x = 7,009,769.00/2,210.90
  6. Step 6: Final answer
    x = 3,170.55

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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.