Home / 5,158.23-7,118.16-2,800.32

Finding the Fourth Proportional to 5,158.23, 7,118.16 and 2,800.32

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Solution

The fourth proportional to 5,158.23, 7,118.16 and 2,800.32 is: 3,864.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,158.23 : 7,118.16 = 2,800.32 : x
  2. Step 2: Convert to fraction form
    5,158.23/7,118.16 = 2,800.32/x
  3. Step 3: Cross multiply
    5,158.23x = 7,118.16 × 2,800.32
  4. Step 4: Simplify right side
    5,158.23x = 19,933,125.81
  5. Step 5: Solve for x
    x = 19,933,125.81/5,158.23
  6. Step 6: Final answer
    x = 3,864.33

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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.