Home / 3,113.02-4,642.39-2,940.49

Finding the Fourth Proportional to 3,113.02, 4,642.39 and 2,940.49

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Solution

The fourth proportional to 3,113.02, 4,642.39 and 2,940.49 is: 4,385.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,113.02 : 4,642.39 = 2,940.49 : x
  2. Step 2: Convert to fraction form
    3,113.02/4,642.39 = 2,940.49/x
  3. Step 3: Cross multiply
    3,113.02x = 4,642.39 × 2,940.49
  4. Step 4: Simplify right side
    3,113.02x = 13,650,901.37
  5. Step 5: Solve for x
    x = 13,650,901.37/3,113.02
  6. Step 6: Final answer
    x = 4,385.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.