Home / 2,916.12-4,373.16-1,272.30

Finding the Fourth Proportional to 2,916.12, 4,373.16 and 1,272.30

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Solution

The fourth proportional to 2,916.12, 4,373.16 and 1,272.30 is: 1,908.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,916.12 : 4,373.16 = 1,272.30 : x
  2. Step 2: Convert to fraction form
    2,916.12/4,373.16 = 1,272.30/x
  3. Step 3: Cross multiply
    2,916.12x = 4,373.16 × 1,272.30
  4. Step 4: Simplify right side
    2,916.12x = 5,563,971.47
  5. Step 5: Solve for x
    x = 5,563,971.47/2,916.12
  6. Step 6: Final answer
    x = 1,908.00

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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.