Home / 5,325.84-7,988.76-1,429.95

Finding the Fourth Proportional to 5,325.84, 7,988.76 and 1,429.95

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Solution

The fourth proportional to 5,325.84, 7,988.76 and 1,429.95 is: 2,144.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,325.84 : 7,988.76 = 1,429.95 : x
  2. Step 2: Convert to fraction form
    5,325.84/7,988.76 = 1,429.95/x
  3. Step 3: Cross multiply
    5,325.84x = 7,988.76 × 1,429.95
  4. Step 4: Simplify right side
    5,325.84x = 11,423,527.36
  5. Step 5: Solve for x
    x = 11,423,527.36/5,325.84
  6. Step 6: Final answer
    x = 2,144.93

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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.