Home / 5,055.95-6,977.45-2,817.84

Finding the Fourth Proportional to 5,055.95, 6,977.45 and 2,817.84

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Solution

The fourth proportional to 5,055.95, 6,977.45 and 2,817.84 is: 3,888.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,055.95 : 6,977.45 = 2,817.84 : x
  2. Step 2: Convert to fraction form
    5,055.95/6,977.45 = 2,817.84/x
  3. Step 3: Cross multiply
    5,055.95x = 6,977.45 × 2,817.84
  4. Step 4: Simplify right side
    5,055.95x = 19,661,381.99
  5. Step 5: Solve for x
    x = 19,661,381.99/5,055.95
  6. Step 6: Final answer
    x = 3,888.76

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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.