Home / 5,031.28-7,547.59-2,108.90

Finding the Fourth Proportional to 5,031.28, 7,547.59 and 2,108.90

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Solution

The fourth proportional to 5,031.28, 7,547.59 and 2,108.90 is: 3,163.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,031.28 : 7,547.59 = 2,108.90 : x
  2. Step 2: Convert to fraction form
    5,031.28/7,547.59 = 2,108.90/x
  3. Step 3: Cross multiply
    5,031.28x = 7,547.59 × 2,108.90
  4. Step 4: Simplify right side
    5,031.28x = 15,917,074.81
  5. Step 5: Solve for x
    x = 15,917,074.81/5,031.28
  6. Step 6: Final answer
    x = 3,163.63

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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.