Home / 1,968.30-2,952.60-507.45

Finding the Fourth Proportional to 1,968.30, 2,952.60 and 507.45

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Solution

The fourth proportional to 1,968.30, 2,952.60 and 507.45 is: 761.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,968.30 : 2,952.60 = 507.45 : x
  2. Step 2: Convert to fraction form
    1,968.30/2,952.60 = 507.45/x
  3. Step 3: Cross multiply
    1,968.30x = 2,952.60 × 507.45
  4. Step 4: Simplify right side
    1,968.30x = 1,498,282.11
  5. Step 5: Solve for x
    x = 1,498,282.11/1,968.30
  6. Step 6: Final answer
    x = 761.21

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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.