Home / 1,403.60-2,105.40-1,184.90

Finding the Fourth Proportional to 1,403.60, 2,105.40 and 1,184.90

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Solution

The fourth proportional to 1,403.60, 2,105.40 and 1,184.90 is: 1,777.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,403.60 : 2,105.40 = 1,184.90 : x
  2. Step 2: Convert to fraction form
    1,403.60/2,105.40 = 1,184.90/x
  3. Step 3: Cross multiply
    1,403.60x = 2,105.40 × 1,184.90
  4. Step 4: Simplify right side
    1,403.60x = 2,494,688.46
  5. Step 5: Solve for x
    x = 2,494,688.46/1,403.60
  6. Step 6: Final answer
    x = 1,777.35

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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.