Home / 2,798.30-3,860.66-1,854.55

Finding the Fourth Proportional to 2,798.30, 3,860.66 and 1,854.55

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Solution

The fourth proportional to 2,798.30, 3,860.66 and 1,854.55 is: 2,558.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,798.30 : 3,860.66 = 1,854.55 : x
  2. Step 2: Convert to fraction form
    2,798.30/3,860.66 = 1,854.55/x
  3. Step 3: Cross multiply
    2,798.30x = 3,860.66 × 1,854.55
  4. Step 4: Simplify right side
    2,798.30x = 7,159,774.75
  5. Step 5: Solve for x
    x = 7,159,774.75/2,798.30
  6. Step 6: Final answer
    x = 2,558.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.