Home / 2,873.13-4,307.50-1,312.05

Finding the Fourth Proportional to 2,873.13, 4,307.50 and 1,312.05

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Solution

The fourth proportional to 2,873.13, 4,307.50 and 1,312.05 is: 1,967.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,873.13 : 4,307.50 = 1,312.05 : x
  2. Step 2: Convert to fraction form
    2,873.13/4,307.50 = 1,312.05/x
  3. Step 3: Cross multiply
    2,873.13x = 4,307.50 × 1,312.05
  4. Step 4: Simplify right side
    2,873.13x = 5,651,645.25
  5. Step 5: Solve for x
    x = 5,651,645.25/2,873.13
  6. Step 6: Final answer
    x = 1,967.07

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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.