Home / 3,666.89-5,060.32-1,988.35

Finding the Fourth Proportional to 3,666.89, 5,060.32 and 1,988.35

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Solution

The fourth proportional to 3,666.89, 5,060.32 and 1,988.35 is: 2,743.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,666.89 : 5,060.32 = 1,988.35 : x
  2. Step 2: Convert to fraction form
    3,666.89/5,060.32 = 1,988.35/x
  3. Step 3: Cross multiply
    3,666.89x = 5,060.32 × 1,988.35
  4. Step 4: Simplify right side
    3,666.89x = 10,061,669.65
  5. Step 5: Solve for x
    x = 10,061,669.65/3,666.89
  6. Step 6: Final answer
    x = 2,743.92

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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.