Home / 2,683.80-4,026.24-928.87

Finding the Fourth Proportional to 2,683.80, 4,026.24 and 928.87

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Solution

The fourth proportional to 2,683.80, 4,026.24 and 928.87 is: 1,393.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,683.80 : 4,026.24 = 928.87 : x
  2. Step 2: Convert to fraction form
    2,683.80/4,026.24 = 928.87/x
  3. Step 3: Cross multiply
    2,683.80x = 4,026.24 × 928.87
  4. Step 4: Simplify right side
    2,683.80x = 3,739,853.55
  5. Step 5: Solve for x
    x = 3,739,853.55/2,683.80
  6. Step 6: Final answer
    x = 1,393.49

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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.