Home / 7,851.60-10,835.40-4,314.88

Finding the Fourth Proportional to 7,851.60, 10,835.40 and 4,314.88

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Solution

The fourth proportional to 7,851.60, 10,835.40 and 4,314.88 is: 5,954.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,851.60 : 10,835.40 = 4,314.88 : x
  2. Step 2: Convert to fraction form
    7,851.60/10,835.40 = 4,314.88/x
  3. Step 3: Cross multiply
    7,851.60x = 10,835.40 × 4,314.88
  4. Step 4: Simplify right side
    7,851.60x = 46,753,450.75
  5. Step 5: Solve for x
    x = 46,753,450.75/7,851.60
  6. Step 6: Final answer
    x = 5,954.64

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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.