Home / 5,255.74-7,250.16-3,130.66

Finding the Fourth Proportional to 5,255.74, 7,250.16 and 3,130.66

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Solution

The fourth proportional to 5,255.74, 7,250.16 and 3,130.66 is: 4,318.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,255.74 : 7,250.16 = 3,130.66 : x
  2. Step 2: Convert to fraction form
    5,255.74/7,250.16 = 3,130.66/x
  3. Step 3: Cross multiply
    5,255.74x = 7,250.16 × 3,130.66
  4. Step 4: Simplify right side
    5,255.74x = 22,697,785.91
  5. Step 5: Solve for x
    x = 22,697,785.91/5,255.74
  6. Step 6: Final answer
    x = 4,318.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.