Home / 2,175.68-3,257.04-1,307.36

Finding the Fourth Proportional to 2,175.68, 3,257.04 and 1,307.36

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Solution

The fourth proportional to 2,175.68, 3,257.04 and 1,307.36 is: 1,957.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175.68 : 3,257.04 = 1,307.36 : x
  2. Step 2: Convert to fraction form
    2,175.68/3,257.04 = 1,307.36/x
  3. Step 3: Cross multiply
    2,175.68x = 3,257.04 × 1,307.36
  4. Step 4: Simplify right side
    2,175.68x = 4,258,123.81
  5. Step 5: Solve for x
    x = 4,258,123.81/2,175.68
  6. Step 6: Final answer
    x = 1,957.15

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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.