Home / 1,622.81-2,430.96-1,251.30

Finding the Fourth Proportional to 1,622.81, 2,430.96 and 1,251.30

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Solution

The fourth proportional to 1,622.81, 2,430.96 and 1,251.30 is: 1,874.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,622.81 : 2,430.96 = 1,251.30 : x
  2. Step 2: Convert to fraction form
    1,622.81/2,430.96 = 1,251.30/x
  3. Step 3: Cross multiply
    1,622.81x = 2,430.96 × 1,251.30
  4. Step 4: Simplify right side
    1,622.81x = 3,041,860.25
  5. Step 5: Solve for x
    x = 3,041,860.25/1,622.81
  6. Step 6: Final answer
    x = 1,874.45

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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.