Home / 7,126.46-10,688.88-1,931.94

Finding the Fourth Proportional to 7,126.46, 10,688.88 and 1,931.94

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Solution

The fourth proportional to 7,126.46, 10,688.88 and 1,931.94 is: 2,897.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,126.46 : 10,688.88 = 1,931.94 : x
  2. Step 2: Convert to fraction form
    7,126.46/10,688.88 = 1,931.94/x
  3. Step 3: Cross multiply
    7,126.46x = 10,688.88 × 1,931.94
  4. Step 4: Simplify right side
    7,126.46x = 20,650,274.83
  5. Step 5: Solve for x
    x = 20,650,274.83/7,126.46
  6. Step 6: Final answer
    x = 2,897.69

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Double scale
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Similar ratio
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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.