Home / 7,071.36-10,607.28-1,877.28

Finding the Fourth Proportional to 7,071.36, 10,607.28 and 1,877.28

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Solution

The fourth proportional to 7,071.36, 10,607.28 and 1,877.28 is: 2,815.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,071.36 : 10,607.28 = 1,877.28 : x
  2. Step 2: Convert to fraction form
    7,071.36/10,607.28 = 1,877.28/x
  3. Step 3: Cross multiply
    7,071.36x = 10,607.28 × 1,877.28
  4. Step 4: Simplify right side
    7,071.36x = 19,912,834.60
  5. Step 5: Solve for x
    x = 19,912,834.60/7,071.36
  6. Step 6: Final answer
    x = 2,815.98

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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.