Home / 5,225.59-7,840.38-3,147.08

Finding the Fourth Proportional to 5,225.59, 7,840.38 and 3,147.08

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Solution

The fourth proportional to 5,225.59, 7,840.38 and 3,147.08 is: 4,721.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,225.59 : 7,840.38 = 3,147.08 : x
  2. Step 2: Convert to fraction form
    5,225.59/7,840.38 = 3,147.08/x
  3. Step 3: Cross multiply
    5,225.59x = 7,840.38 × 3,147.08
  4. Step 4: Simplify right side
    5,225.59x = 24,674,303.09
  5. Step 5: Solve for x
    x = 24,674,303.09/5,225.59
  6. Step 6: Final answer
    x = 4,721.82

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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.