Home / 4,281.15-6,421.64-1,972.65

Finding the Fourth Proportional to 4,281.15, 6,421.64 and 1,972.65

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Solution

The fourth proportional to 4,281.15, 6,421.64 and 1,972.65 is: 2,958.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,281.15 : 6,421.64 = 1,972.65 : x
  2. Step 2: Convert to fraction form
    4,281.15/6,421.64 = 1,972.65/x
  3. Step 3: Cross multiply
    4,281.15x = 6,421.64 × 1,972.65
  4. Step 4: Simplify right side
    4,281.15x = 12,667,638.28
  5. Step 5: Solve for x
    x = 12,667,638.28/4,281.15
  6. Step 6: Final answer
    x = 2,958.93

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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.