Home / 4,720.40-7,081.08-1,434.32

Finding the Fourth Proportional to 4,720.40, 7,081.08 and 1,434.32

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Solution

The fourth proportional to 4,720.40, 7,081.08 and 1,434.32 is: 2,151.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,720.40 : 7,081.08 = 1,434.32 : x
  2. Step 2: Convert to fraction form
    4,720.40/7,081.08 = 1,434.32/x
  3. Step 3: Cross multiply
    4,720.40x = 7,081.08 × 1,434.32
  4. Step 4: Simplify right side
    4,720.40x = 10,156,534.67
  5. Step 5: Solve for x
    x = 10,156,534.67/4,720.40
  6. Step 6: Final answer
    x = 2,151.63

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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.