Home / 4,281.58-6,421.35-1,319.61

Finding the Fourth Proportional to 4,281.58, 6,421.35 and 1,319.61

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Solution

The fourth proportional to 4,281.58, 6,421.35 and 1,319.61 is: 1,979.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,281.58 : 6,421.35 = 1,319.61 : x
  2. Step 2: Convert to fraction form
    4,281.58/6,421.35 = 1,319.61/x
  3. Step 3: Cross multiply
    4,281.58x = 6,421.35 × 1,319.61
  4. Step 4: Simplify right side
    4,281.58x = 8,473,677.67
  5. Step 5: Solve for x
    x = 8,473,677.67/4,281.58
  6. Step 6: Final answer
    x = 1,979.10

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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.