Home / 1,787.83-2,682.35-1,615.30

Finding the Fourth Proportional to 1,787.83, 2,682.35 and 1,615.30

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Solution

The fourth proportional to 1,787.83, 2,682.35 and 1,615.30 is: 2,423.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787.83 : 2,682.35 = 1,615.30 : x
  2. Step 2: Convert to fraction form
    1,787.83/2,682.35 = 1,615.30/x
  3. Step 3: Cross multiply
    1,787.83x = 2,682.35 × 1,615.30
  4. Step 4: Simplify right side
    1,787.83x = 4,332,778.47
  5. Step 5: Solve for x
    x = 4,332,778.47/1,787.83
  6. Step 6: Final answer
    x = 2,423.49

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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.