Home / 5,187.54-7,159.40-2,888.16

Finding the Fourth Proportional to 5,187.54, 7,159.40 and 2,888.16

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Solution

The fourth proportional to 5,187.54, 7,159.40 and 2,888.16 is: 3,985.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.54 : 7,159.40 = 2,888.16 : x
  2. Step 2: Convert to fraction form
    5,187.54/7,159.40 = 2,888.16/x
  3. Step 3: Cross multiply
    5,187.54x = 7,159.40 × 2,888.16
  4. Step 4: Simplify right side
    5,187.54x = 20,677,499.92
  5. Step 5: Solve for x
    x = 20,677,499.92/5,187.54
  6. Step 6: Final answer
    x = 3,985.99

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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.