Home / 5,143.52-7,098.06-2,785.67

Finding the Fourth Proportional to 5,143.52, 7,098.06 and 2,785.67

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Solution

The fourth proportional to 5,143.52, 7,098.06 and 2,785.67 is: 3,844.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,143.52 : 7,098.06 = 2,785.67 : x
  2. Step 2: Convert to fraction form
    5,143.52/7,098.06 = 2,785.67/x
  3. Step 3: Cross multiply
    5,143.52x = 7,098.06 × 2,785.67
  4. Step 4: Simplify right side
    5,143.52x = 19,772,827.76
  5. Step 5: Solve for x
    x = 19,772,827.76/5,143.52
  6. Step 6: Final answer
    x = 3,844.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.