Home / 1,708.25-2,549.75-1,666.81

Finding the Fourth Proportional to 1,708.25, 2,549.75 and 1,666.81

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Solution

The fourth proportional to 1,708.25, 2,549.75 and 1,666.81 is: 2,487.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,708.25 : 2,549.75 = 1,666.81 : x
  2. Step 2: Convert to fraction form
    1,708.25/2,549.75 = 1,666.81/x
  3. Step 3: Cross multiply
    1,708.25x = 2,549.75 × 1,666.81
  4. Step 4: Simplify right side
    1,708.25x = 4,249,936.05
  5. Step 5: Solve for x
    x = 4,249,936.05/1,708.25
  6. Step 6: Final answer
    x = 2,487.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.