Home / 4,876.32-6,728.28-2,887.50

Finding the Fourth Proportional to 4,876.32, 6,728.28 and 2,887.50

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Solution

The fourth proportional to 4,876.32, 6,728.28 and 2,887.50 is: 3,984.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,876.32 : 6,728.28 = 2,887.50 : x
  2. Step 2: Convert to fraction form
    4,876.32/6,728.28 = 2,887.50/x
  3. Step 3: Cross multiply
    4,876.32x = 6,728.28 × 2,887.50
  4. Step 4: Simplify right side
    4,876.32x = 19,427,908.50
  5. Step 5: Solve for x
    x = 19,427,908.50/4,876.32
  6. Step 6: Final answer
    x = 3,984.13

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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.