Home / 5,031.81-7,547.88-2,112.16

Finding the Fourth Proportional to 5,031.81, 7,547.88 and 2,112.16

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Solution

The fourth proportional to 5,031.81, 7,547.88 and 2,112.16 is: 3,168.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,031.81 : 7,547.88 = 2,112.16 : x
  2. Step 2: Convert to fraction form
    5,031.81/7,547.88 = 2,112.16/x
  3. Step 3: Cross multiply
    5,031.81x = 7,547.88 × 2,112.16
  4. Step 4: Simplify right side
    5,031.81x = 15,942,365.27
  5. Step 5: Solve for x
    x = 15,942,365.27/5,031.81
  6. Step 6: Final answer
    x = 3,168.32

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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.