Home / 5,283.77-7,288.40-3,491.28

Finding the Fourth Proportional to 5,283.77, 7,288.40 and 3,491.28

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Solution

The fourth proportional to 5,283.77, 7,288.40 and 3,491.28 is: 4,815.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,283.77 : 7,288.40 = 3,491.28 : x
  2. Step 2: Convert to fraction form
    5,283.77/7,288.40 = 3,491.28/x
  3. Step 3: Cross multiply
    5,283.77x = 7,288.40 × 3,491.28
  4. Step 4: Simplify right side
    5,283.77x = 25,445,827.70
  5. Step 5: Solve for x
    x = 25,445,827.70/5,283.77
  6. Step 6: Final answer
    x = 4,815.85

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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.