Home / 2,423.40-3,639.15-1,605.30

Finding the Fourth Proportional to 2,423.40, 3,639.15 and 1,605.30

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Solution

The fourth proportional to 2,423.40, 3,639.15 and 1,605.30 is: 2,410.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,423.40 : 3,639.15 = 1,605.30 : x
  2. Step 2: Convert to fraction form
    2,423.40/3,639.15 = 1,605.30/x
  3. Step 3: Cross multiply
    2,423.40x = 3,639.15 × 1,605.30
  4. Step 4: Simplify right side
    2,423.40x = 5,841,927.50
  5. Step 5: Solve for x
    x = 5,841,927.50/2,423.40
  6. Step 6: Final answer
    x = 2,410.63

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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.