Home / 5,618.16-7,752.87-3,100.32

Finding the Fourth Proportional to 5,618.16, 7,752.87 and 3,100.32

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Solution

The fourth proportional to 5,618.16, 7,752.87 and 3,100.32 is: 4,278.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.16 : 7,752.87 = 3,100.32 : x
  2. Step 2: Convert to fraction form
    5,618.16/7,752.87 = 3,100.32/x
  3. Step 3: Cross multiply
    5,618.16x = 7,752.87 × 3,100.32
  4. Step 4: Simplify right side
    5,618.16x = 24,036,377.92
  5. Step 5: Solve for x
    x = 24,036,377.92/5,618.16
  6. Step 6: Final answer
    x = 4,278.34

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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.