Home / 2,420.30-3,631.26-959.60

Finding the Fourth Proportional to 2,420.30, 3,631.26 and 959.60

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Solution

The fourth proportional to 2,420.30, 3,631.26 and 959.60 is: 1,439.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.30 : 3,631.26 = 959.60 : x
  2. Step 2: Convert to fraction form
    2,420.30/3,631.26 = 959.60/x
  3. Step 3: Cross multiply
    2,420.30x = 3,631.26 × 959.60
  4. Step 4: Simplify right side
    2,420.30x = 3,484,557.10
  5. Step 5: Solve for x
    x = 3,484,557.10/2,420.30
  6. Step 6: Final answer
    x = 1,439.72

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1.5x scale

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.