Home / 5,325.85-7,988.76-1,429.93

Finding the Fourth Proportional to 5,325.85, 7,988.76 and 1,429.93

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Solution

The fourth proportional to 5,325.85, 7,988.76 and 1,429.93 is: 2,144.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,325.85 : 7,988.76 = 1,429.93 : x
  2. Step 2: Convert to fraction form
    5,325.85/7,988.76 = 1,429.93/x
  3. Step 3: Cross multiply
    5,325.85x = 7,988.76 × 1,429.93
  4. Step 4: Simplify right side
    5,325.85x = 11,423,367.59
  5. Step 5: Solve for x
    x = 11,423,367.59/5,325.85
  6. Step 6: Final answer
    x = 2,144.89

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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.