Home / 5,275.90-7,280.77-2,918.04

Finding the Fourth Proportional to 5,275.90, 7,280.77 and 2,918.04

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Solution

The fourth proportional to 5,275.90, 7,280.77 and 2,918.04 is: 4,026.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,275.90 : 7,280.77 = 2,918.04 : x
  2. Step 2: Convert to fraction form
    5,275.90/7,280.77 = 2,918.04/x
  3. Step 3: Cross multiply
    5,275.90x = 7,280.77 × 2,918.04
  4. Step 4: Simplify right side
    5,275.90x = 21,245,589.92
  5. Step 5: Solve for x
    x = 21,245,589.92/5,275.90
  6. Step 6: Final answer
    x = 4,026.91

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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.