Home / 4,703.68-6,491.28-3,130.72

Finding the Fourth Proportional to 4,703.68, 6,491.28 and 3,130.72

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Solution

The fourth proportional to 4,703.68, 6,491.28 and 3,130.72 is: 4,320.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,703.68 : 6,491.28 = 3,130.72 : x
  2. Step 2: Convert to fraction form
    4,703.68/6,491.28 = 3,130.72/x
  3. Step 3: Cross multiply
    4,703.68x = 6,491.28 × 3,130.72
  4. Step 4: Simplify right side
    4,703.68x = 20,322,380.12
  5. Step 5: Solve for x
    x = 20,322,380.12/4,703.68
  6. Step 6: Final answer
    x = 4,320.53

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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.