Home / 5,429.25-7,492.74-3,071.40

Finding the Fourth Proportional to 5,429.25, 7,492.74 and 3,071.40

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Solution

The fourth proportional to 5,429.25, 7,492.74 and 3,071.40 is: 4,238.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429.25 : 7,492.74 = 3,071.40 : x
  2. Step 2: Convert to fraction form
    5,429.25/7,492.74 = 3,071.40/x
  3. Step 3: Cross multiply
    5,429.25x = 7,492.74 × 3,071.40
  4. Step 4: Simplify right side
    5,429.25x = 23,013,201.64
  5. Step 5: Solve for x
    x = 23,013,201.64/5,429.25
  6. Step 6: Final answer
    x = 4,238.74

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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.