Home / 4,887.90-7,335.45-1,968.30

Finding the Fourth Proportional to 4,887.90, 7,335.45 and 1,968.30

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Solution

The fourth proportional to 4,887.90, 7,335.45 and 1,968.30 is: 2,953.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,887.90 : 7,335.45 = 1,968.30 : x
  2. Step 2: Convert to fraction form
    4,887.90/7,335.45 = 1,968.30/x
  3. Step 3: Cross multiply
    4,887.90x = 7,335.45 × 1,968.30
  4. Step 4: Simplify right side
    4,887.90x = 14,438,366.24
  5. Step 5: Solve for x
    x = 14,438,366.24/4,887.90
  6. Step 6: Final answer
    x = 2,953.90

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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.