Home / 5,275.95-7,280.81-3,180.48

Finding the Fourth Proportional to 5,275.95, 7,280.81 and 3,180.48

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Solution

The fourth proportional to 5,275.95, 7,280.81 and 3,180.48 is: 4,389.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,275.95 : 7,280.81 = 3,180.48 : x
  2. Step 2: Convert to fraction form
    5,275.95/7,280.81 = 3,180.48/x
  3. Step 3: Cross multiply
    5,275.95x = 7,280.81 × 3,180.48
  4. Step 4: Simplify right side
    5,275.95x = 23,156,418.28
  5. Step 5: Solve for x
    x = 23,156,418.28/5,275.95
  6. Step 6: Final answer
    x = 4,389.06

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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.