Home / 3,157.12-4,732.76-1,207.76

Finding the Fourth Proportional to 3,157.12, 4,732.76 and 1,207.76

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Solution

The fourth proportional to 3,157.12, 4,732.76 and 1,207.76 is: 1,810.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,157.12 : 4,732.76 = 1,207.76 : x
  2. Step 2: Convert to fraction form
    3,157.12/4,732.76 = 1,207.76/x
  3. Step 3: Cross multiply
    3,157.12x = 4,732.76 × 1,207.76
  4. Step 4: Simplify right side
    3,157.12x = 5,716,038.22
  5. Step 5: Solve for x
    x = 5,716,038.22/3,157.12
  6. Step 6: Final answer
    x = 1,810.52

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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.