Home / 7,721.28-10,655.34-4,184.55

Finding the Fourth Proportional to 7,721.28, 10,655.34 and 4,184.55

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Solution

The fourth proportional to 7,721.28, 10,655.34 and 4,184.55 is: 5,774.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721.28 : 10,655.34 = 4,184.55 : x
  2. Step 2: Convert to fraction form
    7,721.28/10,655.34 = 4,184.55/x
  3. Step 3: Cross multiply
    7,721.28x = 10,655.34 × 4,184.55
  4. Step 4: Simplify right side
    7,721.28x = 44,587,803.00
  5. Step 5: Solve for x
    x = 44,587,803.00/7,721.28
  6. Step 6: Final answer
    x = 5,774.66

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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.