Home / 1,451.66-2,178.10-904.30

Finding the Fourth Proportional to 1,451.66, 2,178.10 and 904.30

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Solution

The fourth proportional to 1,451.66, 2,178.10 and 904.30 is: 1,356.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,451.66 : 2,178.10 = 904.30 : x
  2. Step 2: Convert to fraction form
    1,451.66/2,178.10 = 904.30/x
  3. Step 3: Cross multiply
    1,451.66x = 2,178.10 × 904.30
  4. Step 4: Simplify right side
    1,451.66x = 1,969,655.83
  5. Step 5: Solve for x
    x = 1,969,655.83/1,451.66
  6. Step 6: Final answer
    x = 1,356.83

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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.