Home / 1,737.24-2,605.85-438.60

Finding the Fourth Proportional to 1,737.24, 2,605.85 and 438.60

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Solution

The fourth proportional to 1,737.24, 2,605.85 and 438.60 is: 657.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,737.24 : 2,605.85 = 438.60 : x
  2. Step 2: Convert to fraction form
    1,737.24/2,605.85 = 438.60/x
  3. Step 3: Cross multiply
    1,737.24x = 2,605.85 × 438.60
  4. Step 4: Simplify right side
    1,737.24x = 1,142,925.81
  5. Step 5: Solve for x
    x = 1,142,925.81/1,737.24
  6. Step 6: Final answer
    x = 657.90

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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.