Home / 5,412.06-8,117.18-1,515.57

Finding the Fourth Proportional to 5,412.06, 8,117.18 and 1,515.57

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Solution

The fourth proportional to 5,412.06, 8,117.18 and 1,515.57 is: 2,273.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,412.06 : 8,117.18 = 1,515.57 : x
  2. Step 2: Convert to fraction form
    5,412.06/8,117.18 = 1,515.57/x
  3. Step 3: Cross multiply
    5,412.06x = 8,117.18 × 1,515.57
  4. Step 4: Simplify right side
    5,412.06x = 12,302,146.91
  5. Step 5: Solve for x
    x = 12,302,146.91/5,412.06
  6. Step 6: Final answer
    x = 2,273.10

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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.