Home / 1,035.84-1,551.21-669.51

Finding the Fourth Proportional to 1,035.84, 1,551.21 and 669.51

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Solution

The fourth proportional to 1,035.84, 1,551.21 and 669.51 is: 1,002.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,035.84 : 1,551.21 = 669.51 : x
  2. Step 2: Convert to fraction form
    1,035.84/1,551.21 = 669.51/x
  3. Step 3: Cross multiply
    1,035.84x = 1,551.21 × 669.51
  4. Step 4: Simplify right side
    1,035.84x = 1,038,550.61
  5. Step 5: Solve for x
    x = 1,038,550.61/1,035.84
  6. Step 6: Final answer
    x = 1,002.62

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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.