Home / 1,860.28-2,789.85-627.34

Finding the Fourth Proportional to 1,860.28, 2,789.85 and 627.34

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Solution

The fourth proportional to 1,860.28, 2,789.85 and 627.34 is: 940.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,860.28 : 2,789.85 = 627.34 : x
  2. Step 2: Convert to fraction form
    1,860.28/2,789.85 = 627.34/x
  3. Step 3: Cross multiply
    1,860.28x = 2,789.85 × 627.34
  4. Step 4: Simplify right side
    1,860.28x = 1,750,184.50
  5. Step 5: Solve for x
    x = 1,750,184.50/1,860.28
  6. Step 6: Final answer
    x = 940.82

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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.