Home / 2,856.30-4,284.45-2,645.10

Finding the Fourth Proportional to 2,856.30, 4,284.45 and 2,645.10

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Solution

The fourth proportional to 2,856.30, 4,284.45 and 2,645.10 is: 3,967.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,856.30 : 4,284.45 = 2,645.10 : x
  2. Step 2: Convert to fraction form
    2,856.30/4,284.45 = 2,645.10/x
  3. Step 3: Cross multiply
    2,856.30x = 4,284.45 × 2,645.10
  4. Step 4: Simplify right side
    2,856.30x = 11,332,798.70
  5. Step 5: Solve for x
    x = 11,332,798.70/2,856.30
  6. Step 6: Final answer
    x = 3,967.65

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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.