Home / 5,311.34-7,330.36-3,215.06

Finding the Fourth Proportional to 5,311.34, 7,330.36 and 3,215.06

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Solution

The fourth proportional to 5,311.34, 7,330.36 and 3,215.06 is: 4,437.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311.34 : 7,330.36 = 3,215.06 : x
  2. Step 2: Convert to fraction form
    5,311.34/7,330.36 = 3,215.06/x
  3. Step 3: Cross multiply
    5,311.34x = 7,330.36 × 3,215.06
  4. Step 4: Simplify right side
    5,311.34x = 23,567,547.22
  5. Step 5: Solve for x
    x = 23,567,547.22/5,311.34
  6. Step 6: Final answer
    x = 4,437.21

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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.