Home / 1,410.60-2,115.96-436.71

Finding the Fourth Proportional to 1,410.60, 2,115.96 and 436.71

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Solution

The fourth proportional to 1,410.60, 2,115.96 and 436.71 is: 655.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,410.60 : 2,115.96 = 436.71 : x
  2. Step 2: Convert to fraction form
    1,410.60/2,115.96 = 436.71/x
  3. Step 3: Cross multiply
    1,410.60x = 2,115.96 × 436.71
  4. Step 4: Simplify right side
    1,410.60x = 924,060.89
  5. Step 5: Solve for x
    x = 924,060.89/1,410.60
  6. Step 6: Final answer
    x = 655.08

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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.