Home / 1,690.62-2,529.16-1,461.98

Finding the Fourth Proportional to 1,690.62, 2,529.16 and 1,461.98

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Solution

The fourth proportional to 1,690.62, 2,529.16 and 1,461.98 is: 2,187.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,690.62 : 2,529.16 = 1,461.98 : x
  2. Step 2: Convert to fraction form
    1,690.62/2,529.16 = 1,461.98/x
  3. Step 3: Cross multiply
    1,690.62x = 2,529.16 × 1,461.98
  4. Step 4: Simplify right side
    1,690.62x = 3,697,581.34
  5. Step 5: Solve for x
    x = 3,697,581.34/1,690.62
  6. Step 6: Final answer
    x = 2,187.12

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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.