Home / 1,725.45-2,380.77-1,666.19

Finding the Fourth Proportional to 1,725.45, 2,380.77 and 1,666.19

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Solution

The fourth proportional to 1,725.45, 2,380.77 and 1,666.19 is: 2,299.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,725.45 : 2,380.77 = 1,666.19 : x
  2. Step 2: Convert to fraction form
    1,725.45/2,380.77 = 1,666.19/x
  3. Step 3: Cross multiply
    1,725.45x = 2,380.77 × 1,666.19
  4. Step 4: Simplify right side
    1,725.45x = 3,966,815.17
  5. Step 5: Solve for x
    x = 3,966,815.17/1,725.45
  6. Step 6: Final answer
    x = 2,299.00

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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.