Home / 1,453.08-2,180.50-631.38

Finding the Fourth Proportional to 1,453.08, 2,180.50 and 631.38

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Solution

The fourth proportional to 1,453.08, 2,180.50 and 631.38 is: 947.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,453.08 : 2,180.50 = 631.38 : x
  2. Step 2: Convert to fraction form
    1,453.08/2,180.50 = 631.38/x
  3. Step 3: Cross multiply
    1,453.08x = 2,180.50 × 631.38
  4. Step 4: Simplify right side
    1,453.08x = 1,376,722.51
  5. Step 5: Solve for x
    x = 1,376,722.51/1,453.08
  6. Step 6: Final answer
    x = 947.45

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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.