Home / 1,812.85-2,501.65-1,026.88

Finding the Fourth Proportional to 1,812.85, 2,501.65 and 1,026.88

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Solution

The fourth proportional to 1,812.85, 2,501.65 and 1,026.88 is: 1,417.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,812.85 : 2,501.65 = 1,026.88 : x
  2. Step 2: Convert to fraction form
    1,812.85/2,501.65 = 1,026.88/x
  3. Step 3: Cross multiply
    1,812.85x = 2,501.65 × 1,026.88
  4. Step 4: Simplify right side
    1,812.85x = 2,568,894.35
  5. Step 5: Solve for x
    x = 2,568,894.35/1,812.85
  6. Step 6: Final answer
    x = 1,417.05

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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.