Home / 2,195.15-3,030.14-1,310.63

Finding the Fourth Proportional to 2,195.15, 3,030.14 and 1,310.63

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Solution

The fourth proportional to 2,195.15, 3,030.14 and 1,310.63 is: 1,809.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,195.15 : 3,030.14 = 1,310.63 : x
  2. Step 2: Convert to fraction form
    2,195.15/3,030.14 = 1,310.63/x
  3. Step 3: Cross multiply
    2,195.15x = 3,030.14 × 1,310.63
  4. Step 4: Simplify right side
    2,195.15x = 3,971,385.84
  5. Step 5: Solve for x
    x = 3,971,385.84/2,195.15
  6. Step 6: Final answer
    x = 1,809.16

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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.