Home / 3,135.53-4,307.17-2,977.58

Finding the Fourth Proportional to 3,135.53, 4,307.17 and 2,977.58

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Solution

The fourth proportional to 3,135.53, 4,307.17 and 2,977.58 is: 4,090.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.53 : 4,307.17 = 2,977.58 : x
  2. Step 2: Convert to fraction form
    3,135.53/4,307.17 = 2,977.58/x
  3. Step 3: Cross multiply
    3,135.53x = 4,307.17 × 2,977.58
  4. Step 4: Simplify right side
    3,135.53x = 12,824,943.25
  5. Step 5: Solve for x
    x = 12,824,943.25/3,135.53
  6. Step 6: Final answer
    x = 4,090.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.