Home / 2,946.96-4,065.65-1,687.34

Finding the Fourth Proportional to 2,946.96, 4,065.65 and 1,687.34

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Solution

The fourth proportional to 2,946.96, 4,065.65 and 1,687.34 is: 2,327.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,946.96 : 4,065.65 = 1,687.34 : x
  2. Step 2: Convert to fraction form
    2,946.96/4,065.65 = 1,687.34/x
  3. Step 3: Cross multiply
    2,946.96x = 4,065.65 × 1,687.34
  4. Step 4: Simplify right side
    2,946.96x = 6,860,105.11
  5. Step 5: Solve for x
    x = 6,860,105.11/2,946.96
  6. Step 6: Final answer
    x = 2,327.86

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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.