Home / 2,349.44-3,507-2,178.12

Finding the Fourth Proportional to 2,349.44, 3,507 and 2,178.12

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Solution

The fourth proportional to 2,349.44, 3,507 and 2,178.12 is: 3,251.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,349.44 : 3,507 = 2,178.12 : x
  2. Step 2: Convert to fraction form
    2,349.44/3,507 = 2,178.12/x
  3. Step 3: Cross multiply
    2,349.44x = 3,507 × 2,178.12
  4. Step 4: Simplify right side
    2,349.44x = 7,638,666.84
  5. Step 5: Solve for x
    x = 7,638,666.84/2,349.44
  6. Step 6: Final answer
    x = 3,251.28

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Double scale
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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.