Home / 1,246.35-1,869.45-900.32

Finding the Fourth Proportional to 1,246.35, 1,869.45 and 900.32

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Solution

The fourth proportional to 1,246.35, 1,869.45 and 900.32 is: 1,350.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,246.35 : 1,869.45 = 900.32 : x
  2. Step 2: Convert to fraction form
    1,246.35/1,869.45 = 900.32/x
  3. Step 3: Cross multiply
    1,246.35x = 1,869.45 × 900.32
  4. Step 4: Simplify right side
    1,246.35x = 1,683,090.50
  5. Step 5: Solve for x
    x = 1,683,090.50/1,246.35
  6. Step 6: Final answer
    x = 1,350.41

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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.