Home / 5,319.12-7,338.40-5,310.92

Finding the Fourth Proportional to 5,319.12, 7,338.40 and 5,310.92

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Solution

The fourth proportional to 5,319.12, 7,338.40 and 5,310.92 is: 7,327.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,319.12 : 7,338.40 = 5,310.92 : x
  2. Step 2: Convert to fraction form
    5,319.12/7,338.40 = 5,310.92/x
  3. Step 3: Cross multiply
    5,319.12x = 7,338.40 × 5,310.92
  4. Step 4: Simplify right side
    5,319.12x = 38,973,605.36
  5. Step 5: Solve for x
    x = 38,973,605.36/5,319.12
  6. Step 6: Final answer
    x = 7,327.08

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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.