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Finding the Fourth Proportional to 2,499.66, 3,750.30 and 856.17

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Solution

The fourth proportional to 2,499.66, 3,750.30 and 856.17 is: 1,284.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,499.66 : 3,750.30 = 856.17 : x
  2. Step 2: Convert to fraction form
    2,499.66/3,750.30 = 856.17/x
  3. Step 3: Cross multiply
    2,499.66x = 3,750.30 × 856.17
  4. Step 4: Simplify right side
    2,499.66x = 3,210,894.35
  5. Step 5: Solve for x
    x = 3,210,894.35/2,499.66
  6. Step 6: Final answer
    x = 1,284.53

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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.