Home / 2,975.95-4,459.06-1,876.78

Finding the Fourth Proportional to 2,975.95, 4,459.06 and 1,876.78

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Solution

The fourth proportional to 2,975.95, 4,459.06 and 1,876.78 is: 2,812.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,975.95 : 4,459.06 = 1,876.78 : x
  2. Step 2: Convert to fraction form
    2,975.95/4,459.06 = 1,876.78/x
  3. Step 3: Cross multiply
    2,975.95x = 4,459.06 × 1,876.78
  4. Step 4: Simplify right side
    2,975.95x = 8,368,642.95
  5. Step 5: Solve for x
    x = 8,368,642.95/2,975.95
  6. Step 6: Final answer
    x = 2,812.10

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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.