Home / 4,440.40-6,658.75-1,319.29

Finding the Fourth Proportional to 4,440.40, 6,658.75 and 1,319.29

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Solution

The fourth proportional to 4,440.40, 6,658.75 and 1,319.29 is: 1,978.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,440.40 : 6,658.75 = 1,319.29 : x
  2. Step 2: Convert to fraction form
    4,440.40/6,658.75 = 1,319.29/x
  3. Step 3: Cross multiply
    4,440.40x = 6,658.75 × 1,319.29
  4. Step 4: Simplify right side
    4,440.40x = 8,784,822.29
  5. Step 5: Solve for x
    x = 8,784,822.29/4,440.40
  6. Step 6: Final answer
    x = 1,978.39

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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.