Home / 2,210.39-3,310.12-1,386.16

Finding the Fourth Proportional to 2,210.39, 3,310.12 and 1,386.16

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Solution

The fourth proportional to 2,210.39, 3,310.12 and 1,386.16 is: 2,075.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,210.39 : 3,310.12 = 1,386.16 : x
  2. Step 2: Convert to fraction form
    2,210.39/3,310.12 = 1,386.16/x
  3. Step 3: Cross multiply
    2,210.39x = 3,310.12 × 1,386.16
  4. Step 4: Simplify right side
    2,210.39x = 4,588,360.22
  5. Step 5: Solve for x
    x = 4,588,360.22/2,210.39
  6. Step 6: Final answer
    x = 2,075.82

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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.