Home / 5,217.08-7,818.29-2,878.17

Finding the Fourth Proportional to 5,217.08, 7,818.29 and 2,878.17

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Solution

The fourth proportional to 5,217.08, 7,818.29 and 2,878.17 is: 4,313.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217.08 : 7,818.29 = 2,878.17 : x
  2. Step 2: Convert to fraction form
    5,217.08/7,818.29 = 2,878.17/x
  3. Step 3: Cross multiply
    5,217.08x = 7,818.29 × 2,878.17
  4. Step 4: Simplify right side
    5,217.08x = 22,502,334.81
  5. Step 5: Solve for x
    x = 22,502,334.81/5,217.08
  6. Step 6: Final answer
    x = 4,313.21

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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.