Home / 1,788.38-2,682.90-555.50

Finding the Fourth Proportional to 1,788.38, 2,682.90 and 555.50

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Solution

The fourth proportional to 1,788.38, 2,682.90 and 555.50 is: 833.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,788.38 : 2,682.90 = 555.50 : x
  2. Step 2: Convert to fraction form
    1,788.38/2,682.90 = 555.50/x
  3. Step 3: Cross multiply
    1,788.38x = 2,682.90 × 555.50
  4. Step 4: Simplify right side
    1,788.38x = 1,490,334.76
  5. Step 5: Solve for x
    x = 1,490,334.76/1,788.38
  6. Step 6: Final answer
    x = 833.35

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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.