Home / 5,275.63-7,915.18-2,158.26

Finding the Fourth Proportional to 5,275.63, 7,915.18 and 2,158.26

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Solution

The fourth proportional to 5,275.63, 7,915.18 and 2,158.26 is: 3,238.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,275.63 : 7,915.18 = 2,158.26 : x
  2. Step 2: Convert to fraction form
    5,275.63/7,915.18 = 2,158.26/x
  3. Step 3: Cross multiply
    5,275.63x = 7,915.18 × 2,158.26
  4. Step 4: Simplify right side
    5,275.63x = 17,083,016.39
  5. Step 5: Solve for x
    x = 17,083,016.39/5,275.63
  6. Step 6: Final answer
    x = 3,238.10

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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.