Home / 7,729.61-11,587.55-2,798.16

Finding the Fourth Proportional to 7,729.61, 11,587.55 and 2,798.16

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Solution

The fourth proportional to 7,729.61, 11,587.55 and 2,798.16 is: 4,194.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,729.61 : 11,587.55 = 2,798.16 : x
  2. Step 2: Convert to fraction form
    7,729.61/11,587.55 = 2,798.16/x
  3. Step 3: Cross multiply
    7,729.61x = 11,587.55 × 2,798.16
  4. Step 4: Simplify right side
    7,729.61x = 32,423,804.92
  5. Step 5: Solve for x
    x = 32,423,804.92/7,729.61
  6. Step 6: Final answer
    x = 4,194.75

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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.