Home / 7,590.48-11,378.88-3,639.36

Finding the Fourth Proportional to 7,590.48, 11,378.88 and 3,639.36

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Solution

The fourth proportional to 7,590.48, 11,378.88 and 3,639.36 is: 5,455.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,590.48 : 11,378.88 = 3,639.36 : x
  2. Step 2: Convert to fraction form
    7,590.48/11,378.88 = 3,639.36/x
  3. Step 3: Cross multiply
    7,590.48x = 11,378.88 × 3,639.36
  4. Step 4: Simplify right side
    7,590.48x = 41,411,840.72
  5. Step 5: Solve for x
    x = 41,411,840.72/7,590.48
  6. Step 6: Final answer
    x = 5,455.76

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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.