Home / 1,666.72-2,298.96-1,169.38

Finding the Fourth Proportional to 1,666.72, 2,298.96 and 1,169.38

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Solution

The fourth proportional to 1,666.72, 2,298.96 and 1,169.38 is: 1,612.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,666.72 : 2,298.96 = 1,169.38 : x
  2. Step 2: Convert to fraction form
    1,666.72/2,298.96 = 1,169.38/x
  3. Step 3: Cross multiply
    1,666.72x = 2,298.96 × 1,169.38
  4. Step 4: Simplify right side
    1,666.72x = 2,688,357.84
  5. Step 5: Solve for x
    x = 2,688,357.84/1,666.72
  6. Step 6: Final answer
    x = 1,612.96

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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.