Home / 2,254.52-3,111-1,310.13

Finding the Fourth Proportional to 2,254.52, 3,111 and 1,310.13

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Solution

The fourth proportional to 2,254.52, 3,111 and 1,310.13 is: 1,807.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,254.52 : 3,111 = 1,310.13 : x
  2. Step 2: Convert to fraction form
    2,254.52/3,111 = 1,310.13/x
  3. Step 3: Cross multiply
    2,254.52x = 3,111 × 1,310.13
  4. Step 4: Simplify right side
    2,254.52x = 4,075,814.43
  5. Step 5: Solve for x
    x = 4,075,814.43/2,254.52
  6. Step 6: Final answer
    x = 1,807.84

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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.