Home / 4,720.56-7,080.03-1,257

Finding the Fourth Proportional to 4,720.56, 7,080.03 and 1,257

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Solution

The fourth proportional to 4,720.56, 7,080.03 and 1,257 is: 1,885.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,720.56 : 7,080.03 = 1,257 : x
  2. Step 2: Convert to fraction form
    4,720.56/7,080.03 = 1,257/x
  3. Step 3: Cross multiply
    4,720.56x = 7,080.03 × 1,257
  4. Step 4: Simplify right side
    4,720.56x = 8,899,597.71
  5. Step 5: Solve for x
    x = 8,899,597.71/4,720.56
  6. Step 6: Final answer
    x = 1,885.28

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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.