Home / 5,265.28-7,896.88-1,977.72

Finding the Fourth Proportional to 5,265.28, 7,896.88 and 1,977.72

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Solution

The fourth proportional to 5,265.28, 7,896.88 and 1,977.72 is: 2,966.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,265.28 : 7,896.88 = 1,977.72 : x
  2. Step 2: Convert to fraction form
    5,265.28/7,896.88 = 1,977.72/x
  3. Step 3: Cross multiply
    5,265.28x = 7,896.88 × 1,977.72
  4. Step 4: Simplify right side
    5,265.28x = 15,617,817.51
  5. Step 5: Solve for x
    x = 15,617,817.51/5,265.28
  6. Step 6: Final answer
    x = 2,966.19

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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.