Home / 2,125.60-3,172.91-2,030.92

Finding the Fourth Proportional to 2,125.60, 3,172.91 and 2,030.92

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Solution

The fourth proportional to 2,125.60, 3,172.91 and 2,030.92 is: 3,031.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125.60 : 3,172.91 = 2,030.92 : x
  2. Step 2: Convert to fraction form
    2,125.60/3,172.91 = 2,030.92/x
  3. Step 3: Cross multiply
    2,125.60x = 3,172.91 × 2,030.92
  4. Step 4: Simplify right side
    2,125.60x = 6,443,926.38
  5. Step 5: Solve for x
    x = 6,443,926.38/2,125.60
  6. Step 6: Final answer
    x = 3,031.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.