Home / 4,887.21-7,330.74-1,189.47

Finding the Fourth Proportional to 4,887.21, 7,330.74 and 1,189.47

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Solution

The fourth proportional to 4,887.21, 7,330.74 and 1,189.47 is: 1,784.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,887.21 : 7,330.74 = 1,189.47 : x
  2. Step 2: Convert to fraction form
    4,887.21/7,330.74 = 1,189.47/x
  3. Step 3: Cross multiply
    4,887.21x = 7,330.74 × 1,189.47
  4. Step 4: Simplify right side
    4,887.21x = 8,719,695.31
  5. Step 5: Solve for x
    x = 8,719,695.31/4,887.21
  6. Step 6: Final answer
    x = 1,784.19

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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.