Home / 3,624.12-5,432.88-1,315.08

Finding the Fourth Proportional to 3,624.12, 5,432.88 and 1,315.08

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Solution

The fourth proportional to 3,624.12, 5,432.88 and 1,315.08 is: 1,971.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,624.12 : 5,432.88 = 1,315.08 : x
  2. Step 2: Convert to fraction form
    3,624.12/5,432.88 = 1,315.08/x
  3. Step 3: Cross multiply
    3,624.12x = 5,432.88 × 1,315.08
  4. Step 4: Simplify right side
    3,624.12x = 7,144,671.83
  5. Step 5: Solve for x
    x = 7,144,671.83/3,624.12
  6. Step 6: Final answer
    x = 1,971.42

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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.