Home / 5,313.50-7,970.70-1,982.66

Finding the Fourth Proportional to 5,313.50, 7,970.70 and 1,982.66

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Solution

The fourth proportional to 5,313.50, 7,970.70 and 1,982.66 is: 2,974.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,313.50 : 7,970.70 = 1,982.66 : x
  2. Step 2: Convert to fraction form
    5,313.50/7,970.70 = 1,982.66/x
  3. Step 3: Cross multiply
    5,313.50x = 7,970.70 × 1,982.66
  4. Step 4: Simplify right side
    5,313.50x = 15,803,188.06
  5. Step 5: Solve for x
    x = 15,803,188.06/5,313.50
  6. Step 6: Final answer
    x = 2,974.16

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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.