Home / 1,877.20-2,591.64-1,669.62

Finding the Fourth Proportional to 1,877.20, 2,591.64 and 1,669.62

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Solution

The fourth proportional to 1,877.20, 2,591.64 and 1,669.62 is: 2,305.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,877.20 : 2,591.64 = 1,669.62 : x
  2. Step 2: Convert to fraction form
    1,877.20/2,591.64 = 1,669.62/x
  3. Step 3: Cross multiply
    1,877.20x = 2,591.64 × 1,669.62
  4. Step 4: Simplify right side
    1,877.20x = 4,327,053.98
  5. Step 5: Solve for x
    x = 4,327,053.98/1,877.20
  6. Step 6: Final answer
    x = 2,305.06

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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.