Home / 1,766.58-2,649.90-986.13

Finding the Fourth Proportional to 1,766.58, 2,649.90 and 986.13

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Solution

The fourth proportional to 1,766.58, 2,649.90 and 986.13 is: 1,479.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,766.58 : 2,649.90 = 986.13 : x
  2. Step 2: Convert to fraction form
    1,766.58/2,649.90 = 986.13/x
  3. Step 3: Cross multiply
    1,766.58x = 2,649.90 × 986.13
  4. Step 4: Simplify right side
    1,766.58x = 2,613,145.89
  5. Step 5: Solve for x
    x = 2,613,145.89/1,766.58
  6. Step 6: Final answer
    x = 1,479.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.