Home / 5,752.40-8,628.78-1,856.84

Finding the Fourth Proportional to 5,752.40, 8,628.78 and 1,856.84

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Solution

The fourth proportional to 5,752.40, 8,628.78 and 1,856.84 is: 2,785.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,752.40 : 8,628.78 = 1,856.84 : x
  2. Step 2: Convert to fraction form
    5,752.40/8,628.78 = 1,856.84/x
  3. Step 3: Cross multiply
    5,752.40x = 8,628.78 × 1,856.84
  4. Step 4: Simplify right side
    5,752.40x = 16,022,263.86
  5. Step 5: Solve for x
    x = 16,022,263.86/5,752.40
  6. Step 6: Final answer
    x = 2,785.32

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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.