Home / 2,086.08-3,124.80-1,530.40

Finding the Fourth Proportional to 2,086.08, 3,124.80 and 1,530.40

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Solution

The fourth proportional to 2,086.08, 3,124.80 and 1,530.40 is: 2,292.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,086.08 : 3,124.80 = 1,530.40 : x
  2. Step 2: Convert to fraction form
    2,086.08/3,124.80 = 1,530.40/x
  3. Step 3: Cross multiply
    2,086.08x = 3,124.80 × 1,530.40
  4. Step 4: Simplify right side
    2,086.08x = 4,782,193.92
  5. Step 5: Solve for x
    x = 4,782,193.92/2,086.08
  6. Step 6: Final answer
    x = 2,292.43

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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.