Home / 2,385.16-3,290.14-1,676.70

Finding the Fourth Proportional to 2,385.16, 3,290.14 and 1,676.70

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Solution

The fourth proportional to 2,385.16, 3,290.14 and 1,676.70 is: 2,312.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,385.16 : 3,290.14 = 1,676.70 : x
  2. Step 2: Convert to fraction form
    2,385.16/3,290.14 = 1,676.70/x
  3. Step 3: Cross multiply
    2,385.16x = 3,290.14 × 1,676.70
  4. Step 4: Simplify right side
    2,385.16x = 5,516,577.74
  5. Step 5: Solve for x
    x = 5,516,577.74/2,385.16
  6. Step 6: Final answer
    x = 2,312.88

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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.