Home / 5,313.20-7,969.76-1,417.92

Finding the Fourth Proportional to 5,313.20, 7,969.76 and 1,417.92

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Solution

The fourth proportional to 5,313.20, 7,969.76 and 1,417.92 is: 2,126.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,313.20 : 7,969.76 = 1,417.92 : x
  2. Step 2: Convert to fraction form
    5,313.20/7,969.76 = 1,417.92/x
  3. Step 3: Cross multiply
    5,313.20x = 7,969.76 × 1,417.92
  4. Step 4: Simplify right side
    5,313.20x = 11,300,482.10
  5. Step 5: Solve for x
    x = 11,300,482.10/5,313.20
  6. Step 6: Final answer
    x = 2,126.87

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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.