Home / 2,210.59-3,312.84-1,115.68

Finding the Fourth Proportional to 2,210.59, 3,312.84 and 1,115.68

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Solution

The fourth proportional to 2,210.59, 3,312.84 and 1,115.68 is: 1,671.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,210.59 : 3,312.84 = 1,115.68 : x
  2. Step 2: Convert to fraction form
    2,210.59/3,312.84 = 1,115.68/x
  3. Step 3: Cross multiply
    2,210.59x = 3,312.84 × 1,115.68
  4. Step 4: Simplify right side
    2,210.59x = 3,696,069.33
  5. Step 5: Solve for x
    x = 3,696,069.33/2,210.59
  6. Step 6: Final answer
    x = 1,671.98

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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.