Home / 5,275.14-7,280.90-3,038.30

Finding the Fourth Proportional to 5,275.14, 7,280.90 and 3,038.30

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Solution

The fourth proportional to 5,275.14, 7,280.90 and 3,038.30 is: 4,193.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,275.14 : 7,280.90 = 3,038.30 : x
  2. Step 2: Convert to fraction form
    5,275.14/7,280.90 = 3,038.30/x
  3. Step 3: Cross multiply
    5,275.14x = 7,280.90 × 3,038.30
  4. Step 4: Simplify right side
    5,275.14x = 22,121,558.47
  5. Step 5: Solve for x
    x = 22,121,558.47/5,275.14
  6. Step 6: Final answer
    x = 4,193.55

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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.