Home / 7,887.20-10,883.84-4,350.40

Finding the Fourth Proportional to 7,887.20, 10,883.84 and 4,350.40

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Solution

The fourth proportional to 7,887.20, 10,883.84 and 4,350.40 is: 6,003.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,887.20 : 10,883.84 = 4,350.40 : x
  2. Step 2: Convert to fraction form
    7,887.20/10,883.84 = 4,350.40/x
  3. Step 3: Cross multiply
    7,887.20x = 10,883.84 × 4,350.40
  4. Step 4: Simplify right side
    7,887.20x = 47,349,008.57
  5. Step 5: Solve for x
    x = 47,349,008.57/7,887.20
  6. Step 6: Final answer
    x = 6,003.28

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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.