Home / 4,685.30-7,031.28-2,220.66

Finding the Fourth Proportional to 4,685.30, 7,031.28 and 2,220.66

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Solution

The fourth proportional to 4,685.30, 7,031.28 and 2,220.66 is: 3,332.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,685.30 : 7,031.28 = 2,220.66 : x
  2. Step 2: Convert to fraction form
    4,685.30/7,031.28 = 2,220.66/x
  3. Step 3: Cross multiply
    4,685.30x = 7,031.28 × 2,220.66
  4. Step 4: Simplify right side
    4,685.30x = 15,614,082.24
  5. Step 5: Solve for x
    x = 15,614,082.24/4,685.30
  6. Step 6: Final answer
    x = 3,332.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.