Home / 4,047.40-6,071.04-1,125.70

Finding the Fourth Proportional to 4,047.40, 6,071.04 and 1,125.70

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Solution

The fourth proportional to 4,047.40, 6,071.04 and 1,125.70 is: 1,688.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,047.40 : 6,071.04 = 1,125.70 : x
  2. Step 2: Convert to fraction form
    4,047.40/6,071.04 = 1,125.70/x
  3. Step 3: Cross multiply
    4,047.40x = 6,071.04 × 1,125.70
  4. Step 4: Simplify right side
    4,047.40x = 6,834,169.73
  5. Step 5: Solve for x
    x = 6,834,169.73/4,047.40
  6. Step 6: Final answer
    x = 1,688.53

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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.