Home / 1,666.58-2,299.18-1,169.55

Finding the Fourth Proportional to 1,666.58, 2,299.18 and 1,169.55

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Solution

The fourth proportional to 1,666.58, 2,299.18 and 1,169.55 is: 1,613.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,666.58 : 2,299.18 = 1,169.55 : x
  2. Step 2: Convert to fraction form
    1,666.58/2,299.18 = 1,169.55/x
  3. Step 3: Cross multiply
    1,666.58x = 2,299.18 × 1,169.55
  4. Step 4: Simplify right side
    1,666.58x = 2,689,005.97
  5. Step 5: Solve for x
    x = 2,689,005.97/1,666.58
  6. Step 6: Final answer
    x = 1,613.49

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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.