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Finding the Fourth Proportional to 2,460.87, 3,690.38 and 999.53

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Solution

The fourth proportional to 2,460.87, 3,690.38 and 999.53 is: 1,498.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,460.87 : 3,690.38 = 999.53 : x
  2. Step 2: Convert to fraction form
    2,460.87/3,690.38 = 999.53/x
  3. Step 3: Cross multiply
    2,460.87x = 3,690.38 × 999.53
  4. Step 4: Simplify right side
    2,460.87x = 3,688,622.07
  5. Step 5: Solve for x
    x = 3,688,622.07/2,460.87
  6. Step 6: Final answer
    x = 1,498.91

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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.