Home / 4,439.63-6,658.20-1,319.51

Finding the Fourth Proportional to 4,439.63, 6,658.20 and 1,319.51

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Solution

The fourth proportional to 4,439.63, 6,658.20 and 1,319.51 is: 1,978.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,439.63 : 6,658.20 = 1,319.51 : x
  2. Step 2: Convert to fraction form
    4,439.63/6,658.20 = 1,319.51/x
  3. Step 3: Cross multiply
    4,439.63x = 6,658.20 × 1,319.51
  4. Step 4: Simplify right side
    4,439.63x = 8,785,561.48
  5. Step 5: Solve for x
    x = 8,785,561.48/4,439.63
  6. Step 6: Final answer
    x = 1,978.89

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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.