Home / 5,154.50-7,731.72-1,258.88

Finding the Fourth Proportional to 5,154.50, 7,731.72 and 1,258.88

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Solution

The fourth proportional to 5,154.50, 7,731.72 and 1,258.88 is: 1,888.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,154.50 : 7,731.72 = 1,258.88 : x
  2. Step 2: Convert to fraction form
    5,154.50/7,731.72 = 1,258.88/x
  3. Step 3: Cross multiply
    5,154.50x = 7,731.72 × 1,258.88
  4. Step 4: Simplify right side
    5,154.50x = 9,733,269.02
  5. Step 5: Solve for x
    x = 9,733,269.02/5,154.50
  6. Step 6: Final answer
    x = 1,888.30

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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.