Home / 7,071.30-10,605.60-1,877.58

Finding the Fourth Proportional to 7,071.30, 10,605.60 and 1,877.58

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Solution

The fourth proportional to 7,071.30, 10,605.60 and 1,877.58 is: 2,816.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,071.30 : 10,605.60 = 1,877.58 : x
  2. Step 2: Convert to fraction form
    7,071.30/10,605.60 = 1,877.58/x
  3. Step 3: Cross multiply
    7,071.30x = 10,605.60 × 1,877.58
  4. Step 4: Simplify right side
    7,071.30x = 19,912,862.45
  5. Step 5: Solve for x
    x = 19,912,862.45/7,071.30
  6. Step 6: Final answer
    x = 2,816.01

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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.