Home / 1,410.04-2,115.30-436.20

Finding the Fourth Proportional to 1,410.04, 2,115.30 and 436.20

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Solution

The fourth proportional to 1,410.04, 2,115.30 and 436.20 is: 654.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,410.04 : 2,115.30 = 436.20 : x
  2. Step 2: Convert to fraction form
    1,410.04/2,115.30 = 436.20/x
  3. Step 3: Cross multiply
    1,410.04x = 2,115.30 × 436.20
  4. Step 4: Simplify right side
    1,410.04x = 922,693.86
  5. Step 5: Solve for x
    x = 922,693.86/1,410.04
  6. Step 6: Final answer
    x = 654.37

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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.