Home / 5,237.90-7,228.12-2,880.02

Finding the Fourth Proportional to 5,237.90, 7,228.12 and 2,880.02

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Solution

The fourth proportional to 5,237.90, 7,228.12 and 2,880.02 is: 3,974.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,237.90 : 7,228.12 = 2,880.02 : x
  2. Step 2: Convert to fraction form
    5,237.90/7,228.12 = 2,880.02/x
  3. Step 3: Cross multiply
    5,237.90x = 7,228.12 × 2,880.02
  4. Step 4: Simplify right side
    5,237.90x = 20,817,115.76
  5. Step 5: Solve for x
    x = 20,817,115.76/5,237.90
  6. Step 6: Final answer
    x = 3,974.32

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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.