Home / 1,464.45-2,196.90-631.75

Finding the Fourth Proportional to 1,464.45, 2,196.90 and 631.75

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Solution

The fourth proportional to 1,464.45, 2,196.90 and 631.75 is: 947.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,464.45 : 2,196.90 = 631.75 : x
  2. Step 2: Convert to fraction form
    1,464.45/2,196.90 = 631.75/x
  3. Step 3: Cross multiply
    1,464.45x = 2,196.90 × 631.75
  4. Step 4: Simplify right side
    1,464.45x = 1,387,892.42
  5. Step 5: Solve for x
    x = 1,387,892.42/1,464.45
  6. Step 6: Final answer
    x = 947.72

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1.5x scale

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.