Home / 4,687.89-7,031.88-1,225.14

Finding the Fourth Proportional to 4,687.89, 7,031.88 and 1,225.14

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Solution

The fourth proportional to 4,687.89, 7,031.88 and 1,225.14 is: 1,837.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,687.89 : 7,031.88 = 1,225.14 : x
  2. Step 2: Convert to fraction form
    4,687.89/7,031.88 = 1,225.14/x
  3. Step 3: Cross multiply
    4,687.89x = 7,031.88 × 1,225.14
  4. Step 4: Simplify right side
    4,687.89x = 8,615,037.46
  5. Step 5: Solve for x
    x = 8,615,037.46/4,687.89
  6. Step 6: Final answer
    x = 1,837.72

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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.