Home / 5,613.12-7,760.52-5,368.32

Finding the Fourth Proportional to 5,613.12, 7,760.52 and 5,368.32

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Solution

The fourth proportional to 5,613.12, 7,760.52 and 5,368.32 is: 7,422.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,613.12 : 7,760.52 = 5,368.32 : x
  2. Step 2: Convert to fraction form
    5,613.12/7,760.52 = 5,368.32/x
  3. Step 3: Cross multiply
    5,613.12x = 7,760.52 × 5,368.32
  4. Step 4: Simplify right side
    5,613.12x = 41,660,954.73
  5. Step 5: Solve for x
    x = 41,660,954.73/5,613.12
  6. Step 6: Final answer
    x = 7,422.07

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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.