Home / 7,637.90-10,540.75-4,280.55

Finding the Fourth Proportional to 7,637.90, 10,540.75 and 4,280.55

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Solution

The fourth proportional to 7,637.90, 10,540.75 and 4,280.55 is: 5,907.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,637.90 : 10,540.75 = 4,280.55 : x
  2. Step 2: Convert to fraction form
    7,637.90/10,540.75 = 4,280.55/x
  3. Step 3: Cross multiply
    7,637.90x = 10,540.75 × 4,280.55
  4. Step 4: Simplify right side
    7,637.90x = 45,120,224.50
  5. Step 5: Solve for x
    x = 45,120,224.50/7,637.90
  6. Step 6: Final answer
    x = 5,907.41

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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.