Home / 7,851.88-10,840.35-5,201.56

Finding the Fourth Proportional to 7,851.88, 10,840.35 and 5,201.56

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Solution

The fourth proportional to 7,851.88, 10,840.35 and 5,201.56 is: 7,181.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,851.88 : 10,840.35 = 5,201.56 : x
  2. Step 2: Convert to fraction form
    7,851.88/10,840.35 = 5,201.56/x
  3. Step 3: Cross multiply
    7,851.88x = 10,840.35 × 5,201.56
  4. Step 4: Simplify right side
    7,851.88x = 56,386,730.95
  5. Step 5: Solve for x
    x = 56,386,730.95/7,851.88
  6. Step 6: Final answer
    x = 7,181.30

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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.