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Finding the Fourth Proportional to 2,955.40, 4,075.07 and 2,208.10

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Solution

The fourth proportional to 2,955.40, 4,075.07 and 2,208.10 is: 3,044.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,955.40 : 4,075.07 = 2,208.10 : x
  2. Step 2: Convert to fraction form
    2,955.40/4,075.07 = 2,208.10/x
  3. Step 3: Cross multiply
    2,955.40x = 4,075.07 × 2,208.10
  4. Step 4: Simplify right side
    2,955.40x = 8,998,151.03
  5. Step 5: Solve for x
    x = 8,998,151.03/2,955.40
  6. Step 6: Final answer
    x = 3,044.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.