Home / 2,355.20-3,535.44-1,490

Finding the Fourth Proportional to 2,355.20, 3,535.44 and 1,490

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Solution

The fourth proportional to 2,355.20, 3,535.44 and 1,490 is: 2,236.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,355.20 : 3,535.44 = 1,490 : x
  2. Step 2: Convert to fraction form
    2,355.20/3,535.44 = 1,490/x
  3. Step 3: Cross multiply
    2,355.20x = 3,535.44 × 1,490
  4. Step 4: Simplify right side
    2,355.20x = 5,267,805.60
  5. Step 5: Solve for x
    x = 5,267,805.60/2,355.20
  6. Step 6: Final answer
    x = 2,236.67

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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.