Home / 3,117.55-4,676.78-1,037.20

Finding the Fourth Proportional to 3,117.55, 4,676.78 and 1,037.20

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Solution

The fourth proportional to 3,117.55, 4,676.78 and 1,037.20 is: 1,555.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.55 : 4,676.78 = 1,037.20 : x
  2. Step 2: Convert to fraction form
    3,117.55/4,676.78 = 1,037.20/x
  3. Step 3: Cross multiply
    3,117.55x = 4,676.78 × 1,037.20
  4. Step 4: Simplify right side
    3,117.55x = 4,850,756.22
  5. Step 5: Solve for x
    x = 4,850,756.22/3,117.55
  6. Step 6: Final answer
    x = 1,555.95

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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.