Home / 5,311.56-7,330.02-3,215.67

Finding the Fourth Proportional to 5,311.56, 7,330.02 and 3,215.67

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Solution

The fourth proportional to 5,311.56, 7,330.02 and 3,215.67 is: 4,437.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311.56 : 7,330.02 = 3,215.67 : x
  2. Step 2: Convert to fraction form
    5,311.56/7,330.02 = 3,215.67/x
  3. Step 3: Cross multiply
    5,311.56x = 7,330.02 × 3,215.67
  4. Step 4: Simplify right side
    5,311.56x = 23,570,925.41
  5. Step 5: Solve for x
    x = 23,570,925.41/5,311.56
  6. Step 6: Final answer
    x = 4,437.67

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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.